Summary of Lecture 4
|
|
- Dennis Benson
- 6 years ago
- Views:
Transcription
1 EE47 Lecture 5 Filters Effect of integrator nonidealities on filter behavior Integrator quality factor and its influence on filter frequency characteristics (brief review for last lecture) Filter dynamic range limitations due to limited integrator linearity Measures of linearity: Harmonic distortion, intermodulation distortion, intercept point Effect of integrator component variations and mismatch on filter response Various integrator topologies utilized in monolithic filters Resistor based filters Transconductance (gm) based filters Switchedcapacitor filters ontinuoustime filter considerations Facts about monolithic Rs, gms, & s and its effect on integrated filter characteristics EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page Summary of Lecture 4 Ladder type RL filters converted to integrator based active filters All pole ladder type filters onvert RL ladder filters to integrator based form Example: 5 th order Butterworth filter High order ladder type filters incorporating zeros 7th order elliptic filter in the form of ladder RL with zeros Sensitivity to component mismatch ompare with cascade of biquads Doubly terminated L ladder filters _ Lowest sensitivity to component variations onvert to integrator based form utilizing SFG techniques Example: Differential high order filter implementation Effect of integrator nonidealities on continuoustime filter behavior Effect of integrator finite D gain & nondominant poles on filter frequency response EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page
2 Real Integrator NonIdealities Ideal Intg. log H s Real Intg. log H s a 0 P 0 a 0 PP3 90 o 90 o o a H( s ) H( s ) s a s s s o p p3... EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 3 Effect of Integrating apacitor Series Resistance on Integrator Q R sc Ideal Intg. 0log H R Ideal V in opamp Finite Rsc adds LHP R sc o Rscs H( s ) s R Qint g R sc Typically, opamp nonidealites dominate Qintg 0dB Phase 90 o Rsc 0 EES 47 Lecture 4: Active Filters 00 H.K. Page 4
3 Summary Effect of Integrator NonIdealities on Q Q int g. ideal Q int g. real a o p i i Amplifier finite D gain reduces the overall Q in the same manner as series/parallel resistance associated with passive elements Amplifier poles located above integrator unitygain frequency enhance the Q! If nondominant poles close to unitygain freq. Oscillation Depending on the location of unitygainfrequency, the two terms can cancel each other out! Overall quality factor of the integrator has to be much higher compared to the filter s highest pole Q EES 47 Lecture 4: Active Filters 00 H.K. Page 5 Effect of Integrator NonLinearities on Overall IntegratorBased Filter Performance Dynamic range of a filter is determined by the ratio of maximum signal output with acceptable performance over total noise Maximum signal handling capability of a filter is determined by the nonlinearities associated with its building blocks Integrator linearity function of opamp/r/ (or any other component used to build the integrator) linearity Linearity specifications for active filters typically given in terms of : Maximum allowable harmonic the output Maximum tolerable intermodulation distortion Intercept points & compression point referred to output or input EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 6
4 omponent Linearity versus Overall Filter Performance Ideal omponents Ideal D transfer characteristics: Perfectly linear output versus input tranfer function with no clipping Vout for sin If Asin t Vout A t Vout Vout f f f f EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 7 omponent Linearity versus Overall Filter Performance SemiIdeal omponents Semiideal D transfer characteristics: Perfectly linear output versus input transfer function with clipping Vout for Vout for Vout for If Asin t Vout Asin t for Otherwise clipped & distorted Vout Vout f f f f EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 8
5 Effect of omponent NonLinearities on Overall Filter Linearity Real omponents including NonLinearities Real D transfer characteristics: Both soft nonlinearities & hard (clipping) V 3 out 3...for lipped otherwise If Asin t Vout f f Vout f? f EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 9 Effect of omponent NonLinearities on Overall Filter Linearity Real omponents including NonLinearities Typical real circuit D transfer characteristics: Vout... If Asin t & A Then: A sin t A sin t Vout Asin t A 3 A or Vout Asin t cost 3sin t sin 3 t... 4 Vout 3 Vout f f f f 3f f EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 0
6 Effect of omponent NonLinearities on Overall Filter Linearity Harmonic Distortion A Vout Asin t cos t 3 3 A 3sin t sin 3t nd amplitude harmonic distortion component HD amplitude fundamental rd amplitude3 harmonic distortion component HD3 amplitude fundamental HD A, 3 HD3 A 4 EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page Example: Significance of Filter Harmonic Distortion in VoiceBand ODEs Voiceband ODE filter (ODE stands for coderdecoder, telephone circuitry includes ODEs with extensive amount of integrated active filters) Specifications includes limits associated with maximum allowable harmonic distortion at the output (< typically < % 40dB) ODE Filter including Output/Input transfer characteristic nonlinearities Vout khz f khz 3kHZ f EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page
7 Example: Significance of Filter Harmonic Distortion in VoiceBand ODEs Specifications includes limits associated with maximum allowable harmonic distortion at the output (< typically < % 40dB) Let us assume filter output/input transfer characteristic: 3 /00 and is negligible since: 3 HD3 A 4 The requirement of HD3 /00 A V Note that with fixed HD3 requirements, larger 3 would result in smaller acceptable maximum signal levels and therefore reduces the overall dynamic range. Maximizing dynamic range requires highly linear circuit components max peak EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 3 Effect of omponent NonLinearities on Overall Filter Linearity Intermodulation Distortion D transfer characteristics including nonlinear terms, input sinusoidal waveforms: Vout sin If A sin t A t Then Vout will have the following components: A sin t A sin t A sin t A sin t A A t t A A cost cost AA cos t cos t A sin t A sin t sin sin... A A n t sin t 3 A A sin t sin t 3 si 3 A A sin sin 4 t t EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 4
8 Effect of omponent NonLinearities on Overall Filter Linearity Intermodulation Distortion Real D transfer characteristics, input sin waves: Vout If A sin t A sn i t Vout f f f f f f f f f f For f & f close in frequency omponents associated with (f f )& (f f ) are the closest to the fundamental signals on the frequency axis and thus most harmful EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 5 Effect of omponent NonLinearities on Overall Filter Linearity Intermodulation Distortion Intermodulation distortion is measured in terms of IM and IM3: Typically for input two sinusoids with equal amplitude ( A A A) nd amplitude IM component IM amplitude fundamental rd amplitude3 IM component IM 3 amplitude fundamental IM IM A 4 8 A A... EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 6
9 Wireless ommunications Measure of Linearity db ompression Point Output Power (dbm) 0log( ) db Vout Input Power (dbm) P db EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 7 Wireless ommunications Measure of Linearity Third Order Intercept Point Vout... Typically: 3 3 3rd IM 3 st I IP3 IIP 3 P db 9.6 db... OIP3 Output Power (dbm) 0log( ) Most common measure of linearity for wireless circuits: OIP3 & IIP3, Third order output/input intercept point Input Power (dbm) 3 3 0log 3 4 IIP3 EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 8
10 Relative Signal Amplitude [db] Relative Signal Amplitude [db] Example: Significance of Filter Intermodulation Distortion in Wireless Systems Typical wireless receiver architecture AG hannel Select Filters A/D Worst case signal scenario wrt linearity of the building blocks Two adjacent channels large compared to desired channel st Adjacent hannel Desired hannel f RX f n f n nd Adjacent hannel EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 9 Example: Significance of Filter Intermodulation Distortion in Wireless Systems st Adjacent hannel 60 nd Adjacent hannel RF Amp 30 Desired channel not distinguishable 0 0 from intermod. omponent! Desired f RX f n f n f n f n f n f n f n f n hannel Adjacent channels can be as much as 60dB higher compared to the desired RX signal! Notice that in this example, 3 rd order intermodulation component associated with the two adjacent channel, falls on the desired channel signal! EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 0
11 Filter Linearity Maximum signal handling capability is usually determined by the specifications wrt harmonic distortion and /or intermodulation distortion Distortion in a filter is a function of linearity of the components Example: In the above circuit linearity of the filter is mainly a function of linearity of the opamp voltage transfer characteristics EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page Various Types of Integrator Based Filter ontinuous Time Resistive element based OpampR OpampMOSFET OpampMOSFETR Transconductance (Gm) based Gm OpampGm Sampled Data Switchedcapacitor Integrator EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page
12 ontinuoustime Resistive Element Type Integrators OpampR & OpampMOSFET & OpampMOSFETR R Vtune Vtune R OpampR OpampMOSFET OpampMOSFETR Vo o Ideal transfer function: where o s Req EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 3 ontinuoustime Transconductance Type Integrator Gm & OpampGm Gm Gm Gm Intg. Ideal transfer function: GmOTA Intg. Vo o Gm where o s EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 4
13 Integrator Implementation Switchedapacitor I T=/f clk s Vo f clk s for fsignal fclk V0 V dt in I s 0 fclk I Main advantage: ritical frequency function of ratio of caps & clock freq. ritical filter frequencies (e.g. LPF 3dB freq.) very accurate EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 5 Few Facts About Monolithic Rs & s & Gms Monolithic continuoustime filter critical frequency set by Rx or /Gm Absolute value of integrated Rs & s & Gms are quite variable Rs vary due to doping and etching nonuniformities ould vary by as much as ~0 to 40% due to process & temperature variations s vary because of oxide thickness variations and etching inaccuracies ould vary ~ 0 to5% Gms typically function of mobility, oxide thickness, current, device geometry ould vary > ~ 40% or more with process & temp. & supply voltage Integrated continuoustime filter critical frequency could vary by over 50% EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 6
14 Few Facts About Monolithic Rs & s While absolute value of monolithic Rs & s and gms are quite variable, with special attention paid to layout, & R & gms quite wellmatched Ratios very accurate and stable over processing, temperature, and time With special attention to layout (e.g. interleaving, use of dummy devices, commoncentroid geometries ): apacitor mismatch << 0.% Resistor mismatch < 0.% Gm mismatch < 0.5% EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 7 Impact of omponent Variations on Filter haracteristics Rs L 3 RL RL Filters Facts about RL filters 3dB determined by absolute value of Ls & s Shape of filter depends on ratios of normalized L & RL Norm Norm r R * 3dB L Norm R * L RL L L Norm r 3dB EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 8
15 Effect of Monolithic R & Variations on Filter haracteristics Filter shape (whether Elliptic with 0.dB Rpass or Butterworth..etc) is a function of ratio of normalized Ls & s in RL filters ritical frequency (e.g. 3dB ) function of absolute value of Ls xs Absolute value of integrated Rs & s & Gms are quite variable Ratios very accurate and stable over time and temperature What is the effect of onchip component variations on monolithic filter frequency characteristics? EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 9 Impact of Process Variations on Filter haracteristics Rs L 3 RL * R V Rs in s s s 3 * R R L RL Filters Integrator Based Filters RL * Norm.R 3dB L RL L Norm R * 3dB Norm L Norm EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 30
16 R R Rn Rn I I3 I In R R R3 R3 R3 Impact of Process Variations on Filter haracteristics int g int g Norm Norm L int g int g int g int g Norm I.R 3dB Norm L.R I 3dB Norm.R I Norm I.R L Variation in absolute value of integrated Rs & s change in critical freq. ( 3dB ) Since ratios of Rs & s very accurate ontinuoustime monolithic filters retain their shape due to good component matching even with variability in absolute component values EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 3 Example: LPF Worst ase orner Frequency Variations Nominal Bandwidth Detailed passband (note shape is wellretained) Worst case bandwidth variation While absolute value of onchip R (gm) timeconstants could vary by as much as 00% (process & temp.) With proper precautions, excellent component matching can be achieved: Wellpreserved relative amplitude & phase vs freq. characteristics Need to only adjust (tune) continuoustime filter critical frequencies EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 3
17 Tunable OpampR Filters Example st order OpampR filter is designed to have a corner frequency of.6mhz Assuming process variations of: varies by 0% R varies by 5% Build the filter in such a way that the corner frequency can be adjusted postmanufacturing. R=0KW R=0KW =0pF Nominal R & values for.6mhz corner frequency EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 33 Filter orner Frequency Variations Assuming expected process variations of: Maximum variations by 0% nom=0pf min=9pf, max=pf Maximum R variations by 5% Rnom=0K Rmin=7.5K, Rmax=.5K orner frequency ranges from.357mhz to.57mhz orner frequency varies by 48% & 7% EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 34
18 Variable Resistor or apacitor In order to make provisions for filter to be tunable either R or should be made adjustable (this example adjustable R) Monolithic Rs can only be made adjustable in discrete steps (not continuous) max Rnom f max.48 Rnom fnom max Rnom 4.8kW min Rnom f min 0.7 Rnom fnom min Rnom 7.kW D D D0 R R R3 R4 Variable Resister MOS xtors act as switches D n high switch acts as short circuit D n low switch open circuit EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 35 Tunable Resistor Maximum variations by 0% min=9pf, max=pf Maximum R variations by 5% Rmin=7.5K, Rmax=.5K orner frequency varies by 48% & 7.% Assuming control signal has n = 3bit (0 or ) for adjustment R=R3=4R4 min R Rnom 7.kW n min max R nom nom R R 4.8k 7.k 4 n 7 n min max R nom nom 3 R R 4.8k 7.k n kW.7kW n3 max min R nom nom 4 R R 4.8k 7.k.08kW n 7 Tuning resolution.08k/0k 0% D D D0 R R R3 R4 Variable Resister MOS xtors act as switches EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 36
19 D D D0 Rnom 7.K 0 8.8K K K Tunable OpampR Filter D D D0 R R R3 R4 V Post manufacturing: in Set all Dx to 00 (mid point) Measure 3dB frequency R R R3 R4 If frequency too high decrement D to D If frequency too low increment D to D If frequency within 0% of the desired corner frequency stop else For higher order filters, all filter integrators tuned simultaneously EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 37 Tunable OpampR Filters Summary Tunable Opamp R Integrator Program s and/or Rs to freq. tune the filter All filter integrators tuned simultaneously Tuning in discrete steps & not continuous Tuning resolution limited Switch parasitic & series R can affect the freq. response of the filter EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 38
20 Example: Tunable LowPass OpampR Filter Adjustable apacitors EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 39 Opamp R Filters Advantages Since resistors are quite linear, linearity only a function of opamp linearity good linearity Disadvantages Opamps have to drive resistive load, low output impedance is required High power consumption ontinuous tuning not possibletuning only in discrete steps Tuning requires programmable Rs and/or s EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 40
21 Integrator Implementation OpampR & OpampMOSFET & OpampMOSFETR R Vtune Vtune R OpampR OpampMOSFET OpampMOSFETR Vo o where o s Req EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 4 Use of MOSFETs as Variable Resistors R OpampR R replaced by MOSFET Operating in triode mode ontinuously variable resistor: Vtune OpampMOSFET I D Triode region V GS MOSFET IV characteristic: Nonlinear R V DS EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 4
22 Opamp MOSFET Integrator SingleEnded Integrator W V ID ox ds Vgs V L th Vds W V i I ox Vgs V D th V L i ID W G ox Vgs Vth Vi Vi L By varying VG effective admittance is tuned Tunable integrator time constant VG I D Tunable by varying VG: Problem: Singleended MOSFET Integrator Effective R nonlinear Note that the nonlinearity is mainly nd order type EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 43 Use of MOSFETs as Resistors Differential Integrator W V ds ID ox Vgs Vth V L ds W Vi V I i D ox Vgs V L th 4 W Vi V I i D ox Vgs V L th 4 W I D I D ox V gs V th V L i ID ID W G ox Vgs Vth Vi L Vi/ Vi/ I D I D M VG M ut Nonlinear term is of even order & cancelled! Admittance independent of Vi OpampMOSFET Problem: Threshold voltage dependence EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 44
23 Use of MOSFET as Resistor Issues MOS xtor operating in triode region ross section view Distributed channel resistance & gate capacitance Distributed nature of gate capacitance & channel resistance results in infinite no. of highfrequency poles: Excess the unitygain frequency of the integrator Enhanced integrator Q Enhanced filter Q, Peaking in the filter passband EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 45 Use of MOSFET as Resistor Issues MOS xtor operating in triode region ross section view Distributed channel resistance & gate capacitance Tradeoffs affecting the choice of device channel length: Filter performance mandates wellmatched MOSFETs long channel devices desirable Excess phase increases with L Q enhancement and potential for oscillation! Tradeoff between device matching and integrator Q This type of filter limited to low frequencies EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 46
24 Suitable for low frequency applications Issues with linearity Linearity achieved ~40 50dB Needs tuning Example: Opamp MOSFET Filter ontinuously tunable 5 th Order Elliptic MOSFET LPF with 4kHz Bandwidth Ref: Y. Tsividis, M.Banu, and J. Khoury, ontinuoustime MOSFET Filters in VLSI, IEEE Journal of Solid State ircuits Vol. S, No. Feb. 986, pp. 530 EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 47 Improved MOSFET Integrator W V ds ID ox Vgs Vth V L ds W V V I i i D ox Vgs V L th 4 W Vi V I i D3 ox Vgs3 Vth Vi/ L 4 I X ID ID3 W Vi V i ox Vgs V L gs3 W Vi V I i Vi/ X ox Vgs3 V L gs W I X I X ox V gs V gs3 V L i IX IX G W ox V gs V gs3 Vi L No threshold voltage dependence V G V G3 M I D I D M I X M3 M4 I X M,,3,4 equal W/L ut Linearity achieved in the order of 5070dB Ref: Z. zarnul, Modification of the BanuTsividis ontinuoustime Integrator Structure, IEEE Transactions on ircuits and Systems, Vol. AS33, No. 7, pp. 7476, July 986. EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 48
25 RMOSFET Integrator V G V G Vi/ Vi/ R R M M M4 M3 ut Improvement over MOSFET by adding resistor in series with MOSFET Voltage drop primarily across fixed resistor small MOSFET Vds improved linearity & reduced tuning range Generally low frequency applications Ref: UK Moon, and BS Song, Design of a LowDistortion khz Fifth Order Bessel Filter, IEEE Journal of Solid State ircuits, Vol. 8, No., pp. 5464, Dec EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 49 RMOSFET Lossy Integrator R Vi/ Vi/ R R V G M M M4 V G M3 ut Negative feedback around the nonlinear MOSFETs improves linearity but compromises frequency response accuracy Ref: UK Moon, and BS Song, Design of a LowDistortion khz Fifth Order Bessel Filter, IEEE Journal of Solid State ircuits, Vol. 8, No., pp. 5464, Dec EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 50 R
26 Example: Opamp MOSFETR Filter 5 th Order Bessel MOSFETR LPF khz bandwidth THD 90dB for 4Vpp, khz input signal Suitable for low frequency, low Q applications Significant improvement in linearity compared to MOSFET Needs tuning Ref: UK Moon, and BS Song, Design of a LowDistortion khz Fifth Order Bessel Filter, IEEE Journal of Solid State ircuits, Vol. 8, No., pp. 5464, Dec EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 5 Operational Amplifiers (Opamps) versus Operational Transconductance Amplifiers (OTA) Opamp Voltage controlled voltage source OTA Voltage controlled current source Output in the form of voltage Low output impedance an drive Rloads Good for R filters, OK for S filters Extra buffer adds complexity, power dissipation Output in the form of current High output impedance In the context of filter design called gmcells annot drive Rloads Good for S & gm filters Typically, less complex compared to opamp higher freq. potential Typically lower power EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 5
27 Integrator Implementation Transconductance & OpampTransconductance Gm Gm Gm Intg. GmOTA Intg. Vo o Gm where o s EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 53 Gm Filters Simplest Form of MOS Gm Integrator Transconductance element formed by the sourcecoupled pair M & M All MOSFETs operating in saturation region urrent in M& M can be varied by changing V control Transconductance of M& M varied through V control int g M M M0 V control Ref: H. Khorramabadi and P.R. Gray, High Frequency MOS continuoustime filters, IEEE Journal of SolidState ircuits, Vol.S9, No. 6, pp , Dec EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 54
28 Simplest Form of MOS Gm Integrator A Half ircuit int g int g M M M0V V control control int g int g M M V M0 control M intg A half circuit EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 55 Gm Filters Simplest Form of MOS Gm Integrator Use ac half circuit & small signal model to derive transfer function: M, Vo gm int gs M, Vo g m int gs Vo o s M, gm o int g GS M gm intg A half circuit Small signal model intg EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 56
29 Gm Filters Simplest Form of MOS Gm Integrator MOSFET in saturation region: W I ox d Vgs Vth L Gm is given by: M &M Id W gm ox Vgs Vth Vgs L I d V gs V th / W ox I L d Id varied via Vcontrol gm tunable via Vcontrol M int g M M0 V control EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 57 Gm Filters nd Order Gm Filter Use the Gmcell to build a nd order bandpass filter M int g M M0 V control EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 58
30 nd Order Bandpass Filter Iin V R R V L L V I I R L I V ' V * R R V * sr ' V 3 * R sl * * R L R * R R s s EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 59 nd Order IntegratorBased Bandpass Filter VBP s V in s s * * R L R * R R 0 Q L Q V BP s s From matching point of view desirable : Q R 0 * R EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 60
31 nd Order IntegratorBased Bandpass Filter V BP First implement this part With transfer function: Q s s V0 s 0 Q EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 6 Terminated Gm Integrator int g M3 M M0 M4 M M V control M M3 A half circuit intg EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 6
32 Terminated Gm Integrator M M3 intg GS M gm M3 g m intg A half circuit Small signal model ompare to: Vo V M3 in int g g s m M M gm gm V0 s 0 Q EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 63 Terminated Gm Integrator Q V BP s s GS M gm M3 g m intg V0 s 0 Q Small signal model Vo V M3 in s int g g m M M gm gm M M gm g m 0 & Q M3 int g gm Question: How to define Q accurately? EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 64
33 Terminated Gm Integrator / M WM M gm ox I d LM / M 3 WM3 M 3 gm ox I d LM3 Let us assume equal channel lengths for M, M3 then: M / M g m I d W M M 3 M 3 g W m I d M3 int g M3 M4 M M M M0 VVcontrol EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 65 Terminated Gm Integrator Note that: M M 0 I d I d M 3 M I d I d Assuming equal channel lengths for M0, M: int g M 0 I d W M 0 M I d W M M gm W M 0 W M g M3 W W m M M3 / M3 M M0 M4 M M VVcontrol EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 66
34 nd Order Gm Filter Simple design Tunable Q function of device ratios: g Q g M, m M 3,4 m EES 47 Lecture 5: IntegratorBased Filters 009 H.K. Page 67
Summary of Lecture 4
EE47 Lecture 5 Filters Effect of integrator nonidealities on filter behavior Integrator quality factor and its influence on filter frequency characteristics (review for last lecture) Filter dynamic range
More informationSummary of Lecture 4
EE47 Lecture 5 Filters Effect of integrator nonidealities on filter behavior Integrator quality factor and its influence on filter frequency characteristics Filter dynamic range limitations due to limited
More informationEE247 Lecture 6. Frequency tuning for continuous-time filters
EE247 Lecture 6 Summary last lecture ontinuoustime filters Opamp MOSFET filters Opamp MOSFETR filters filters Frequency tuning for continuoustime filters Trimming via fuses Automatic onchip filter tuning
More informationEE247 Lecture 6. Summary Lecture 5
EE247 Lecture 6 ontinuoustime filters (continued) Opamp MOSFET filters Opamp MOSFETR filters filters Frequency tuning for continuoustime filters Trimming via fuses or laser Automatic onchip filter tuning
More informationSummary Last Lecture
EE247 Lecture 6 Summary last lecture ontinuoustime filters Opamp MOSFET filters Opamp MOSFETR filters filters Frequency tuning for continuoustime filters Trimming via fuses Automatic onchip filter tuning
More informationSummary last lecture
EE247 Lecture 7 Summary last lecture Automatic onchip filter tuning (continued from last lecture) Continuous tuning Reference integrator locked to a reference frequency Error due to integrator DC offset
More informationSystem on a Chip. Prof. Dr. Michael Kraft
System on a Chip Prof. Dr. Michael Kraft Lecture 4: Filters Filters General Theory Continuous Time Filters Background Filters are used to separate signals in the frequency domain, e.g. remove noise, tune
More informationSWITCHED CAPACITOR CIRCUITS
EE37 Advanced Analog ircuits Lecture 7 SWITHED APAITOR IRUITS Richard Schreier richard.schreier@analog.com Trevor aldwell trevor.caldwell@utoronto.ca ourse Goals Deepen Understanding of MOS analog circuit
More informationA Wide Tuning Range Gm-C Continuous-Time Analog Filter
A Wide Tuning Range Gm-C Continuous-Time Analog Filter Prashanth Kannepally Dept. of Electronics and Communication Engineering SNIST Hyderabad, India 685project6801@gmail.com Abstract A Wide Tuning Range
More informationADVANCES in CMOS technology have led to aggressive
1972 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 40, NO. 9, SEPTEMBER 2005 A 0.8-V Accurately Tuned Linear Continuous-Time Filter Gowtham Vemulapalli, Pavan Kumar Hanumolu, Student Member, IEEE, Youn-Jae
More informationOperational Amplifiers
CHAPTER 9 Operational Amplifiers Analog IC Analysis and Design 9- Chih-Cheng Hsieh Outline. General Consideration. One-Stage Op Amps / Two-Stage Op Amps 3. Gain Boosting 4. Common-Mode Feedback 5. Input
More informationEE247 Lecture 9. Sampling Sine Waves Frequency Spectrum
EE247 Lecture 9 Switched-capacitor filters (continued) Example of anti-aliasing prefilter for S.. filters Switched-capacitor network electronic noise Switched-capacitor integrators DDI integrators LDI
More informationCHAPTER 3 CMOS LOW NOISE AMPLIFIERS
46 CHAPTER 3 CMOS LOW NOISE AMPLIFIERS 3.1 INTRODUCTION The Low Noise Amplifier (LNA) plays an important role in the receiver design. LNA serves as the first block in the RF receiver. It is a critical
More informationLecture 3 Switched-Capacitor Circuits Trevor Caldwell
Advanced Analog Circuits Lecture 3 Switched-Capacitor Circuits Trevor Caldwell trevor.caldwell@analog.com Lecture Plan Date Lecture (Wednesday 2-4pm) Reference Homework 2017-01-11 1 MOD1 & MOD2 ST 2, 3,
More informationEECS 247 Analog-Digital Interface Integrated Circuits 2005
EES 47 Analog-Digital Interface Integrated ircuits 5 Instructor: Haideh Khorramabadi UB Department of Electrical Engineering and omputer Sciences EES 47 Lecture 1: Introduction 5 H.K. Page 1 Administrative
More informationOutline. Noise and Distortion. Noise basics Component and system noise Distortion INF4420. Jørgen Andreas Michaelsen Spring / 45 2 / 45
INF440 Noise and Distortion Jørgen Andreas Michaelsen Spring 013 1 / 45 Outline Noise basics Component and system noise Distortion Spring 013 Noise and distortion / 45 Introduction We have already considered
More informationSolid State Devices & Circuits. 18. Advanced Techniques
ECE 442 Solid State Devices & Circuits 18. Advanced Techniques Jose E. Schutt-Aine Electrical l&c Computer Engineering i University of Illinois jschutt@emlab.uiuc.edu 1 Darlington Configuration - Popular
More informationMicroelectronic Circuits II. Ch 10 : Operational-Amplifier Circuits
Microelectronic Circuits II Ch 0 : Operational-Amplifier Circuits 0. The Two-stage CMOS Op Amp 0.2 The Folded-Cascode CMOS Op Amp CNU EE 0.- Operational-Amplifier Introduction - Analog ICs : operational
More informationNonlinear Macromodeling of Amplifiers and Applications to Filter Design.
ECEN 622(ESS) Nonlinear Macromodeling of Amplifiers and Applications to Filter Design. By Edgar Sanchez-Sinencio Thanks to Heng Zhang for part of the material OP AMP MACROMODELS Systems containing a significant
More informationDesign of Pipeline Analog to Digital Converter
Design of Pipeline Analog to Digital Converter Vivek Tripathi, Chandrajit Debnath, Rakesh Malik STMicroelectronics The pipeline analog-to-digital converter (ADC) architecture is the most popular topology
More informationA Switched-Capacitor Band-Pass Biquad Filter Using a Simple Quasi-unity Gain Amplifier
A Switched-Capacitor Band-Pass Biquad Filter Using a Simple Quasi-unity Gain Amplifier Hugo Serra, Nuno Paulino, and João Goes Centre for Technologies and Systems (CTS) UNINOVA Dept. of Electrical Engineering
More informationApplied Electronics II
Applied Electronics II Chapter 3: Operational Amplifier Part 1- Op Amp Basics School of Electrical and Computer Engineering Addis Ababa Institute of Technology Addis Ababa University Daniel D./Getachew
More informationECE 442 Solid State Devices & Circuits. 15. Differential Amplifiers
ECE 442 Solid State Devices & Circuits 15. Differential Amplifiers Jose E. Schutt-Aine Electrical & Computer Engineering University of Illinois jschutt@emlab.uiuc.edu ECE 442 Jose Schutt Aine 1 Background
More informationECEN 474/704 Lab 6: Differential Pairs
ECEN 474/704 Lab 6: Differential Pairs Objective Design, simulate and layout various differential pairs used in different types of differential amplifiers such as operational transconductance amplifiers
More informationIntroduction to Receivers
Introduction to Receivers Purpose: translate RF signals to baseband Shift frequency Amplify Filter Demodulate Why is this a challenge? Interference Large dynamic range required Many receivers must be capable
More informationEE 508 Lecture 28. Integrator Design. Alaising in SC Circuits Elimination of redundant switches Switched Resistor Integrators
EE 508 Lecture 28 Integrator Design Alaising in S ircuits Elimination of redundant switches Switched Resistor Integrators Review from last time The S integrator 1 1 I 0eq= f LK Observe this circuit has
More informationSummary Last Lecture
EE247 Lecture 16 D/A onverters (continued) DA reconstruction filter AD onverters Sampling Sampling switch considerations Thermal noise due to switch resistance lock jitter related non-idealities Sampling
More informationAdvanced Operational Amplifiers
IsLab Analog Integrated Circuit Design OPA2-47 Advanced Operational Amplifiers כ Kyungpook National University IsLab Analog Integrated Circuit Design OPA2-1 Advanced Current Mirrors and Opamps Two-stage
More informationRF, Microwave & Wireless. All rights reserved
RF, Microwave & Wireless All rights reserved 1 Non-Linearity Phenomenon All rights reserved 2 Physical causes of nonlinearity Operation under finite power-supply voltages Essential non-linear characteristics
More informationSOLIMAN A. MAHMOUD Department of Electrical Engineering, Faculty of Engineering, Cairo University, Fayoum, Egypt
Journal of Circuits, Systems, and Computers Vol. 14, No. 4 (2005) 667 684 c World Scientific Publishing Company DIGITALLY CONTROLLED CMOS BALANCED OUTPUT TRANSCONDUCTOR AND APPLICATION TO VARIABLE GAIN
More informationESSCIRC88 CMOS CIRCUITS FOR ANALOG SIGNAL PROCESSING. University of Twente, Enschede, the Netherlands.
CMOS CIRCUITS FOR ANALOG SIGNAL PROCESSING H Wallinga University of Twente, Enschede, the Netherlands Summary Design choices in CMOS analog signal processing circuits are presented Special attention is
More informationLecture 300 Low Voltage Op Amps (3/28/10) Page 300-1
Lecture 300 Low Voltage Op Amps (3/28/10) Page 300-1 LECTURE 300 LOW VOLTAGE OP AMPS LECTURE ORGANIZATION Outline Introduction Low voltage input stages Low voltage gain stages Low voltage bias circuits
More informationCHAPTER 2 THE DESIGN OF ACTIVE POLYPHASE FILTER
CHAPTER 2 THE DESIGN OF ACTIVE POLYPHASE FILTER 2.1 INTRODUCTION The fast growth of wireless applications in recent years has driven intense efforts to design highly integrated, high-performance, low-cost
More informationEE247 - Lecture 2 Filters. EECS 247 Lecture 2: Filters 2005 H.K. Page 1. Administrative. Office hours for H.K. changed to:
EE247 - Lecture 2 Filters Material covered today: Nomenclature Filter specifications Quality factor Frequency characteristics Group delay Filter types Butterworth Chebyshev I Chebyshev II Elliptic Bessel
More informationClass-AB Low-Voltage CMOS Unity-Gain Buffers
Class-AB Low-Voltage CMOS Unity-Gain Buffers Mariano Jimenez, Antonio Torralba, Ramón G. Carvajal and J. Ramírez-Angulo Abstract Class-AB circuits, which are able to deal with currents several orders of
More informationNonlinear Macromodeling of Amplifiers and Applications to Filter Design.
ECEN 622 Nonlinear Macromodeling of Amplifiers and Applications to Filter Design. By Edgar Sanchez-Sinencio Thanks to Heng Zhang for part of the material OP AMP MACROMODELS Systems containing a significant
More informationChapter 12 Opertational Amplifier Circuits
1 Chapter 12 Opertational Amplifier Circuits Learning Objectives 1) The design and analysis of the two basic CMOS op-amp architectures: the two-stage circuit and the single-stage, folded cascode circuit.
More informationGrounded Voltage Controlled Positive Resistor with Ultra Low Power Consumption
http://dx.doi.org/.5755/j.eee..7.83 ELEKTRONIKA IR ELEKTROTECHNIKA, ISSN 39-5, VOL., NO. 7, 4 Grounded Voltage Controlled Positive Resistor with Ultra Low Power Consumption E. Yuce, S. Minaei, N. Herencsar
More informationActive Filter Design Techniques
Active Filter Design Techniques 16.1 Introduction What is a filter? A filter is a device that passes electric signals at certain frequencies or frequency ranges while preventing the passage of others.
More informationClassic Filters. Figure 1 Butterworth Filter. Chebyshev
Classic Filters There are 4 classic analogue filter types: Butterworth, Chebyshev, Elliptic and Bessel. There is no ideal filter; each filter is good in some areas but poor in others. Butterworth: Flattest
More informationElectronic Noise. Analog Dynamic Range
Electronic Noise Dynamic range in the analog domain Resistor noise Amplifier noise Maximum signal levels Tow-Thomas Biquad noise example Implications on power dissipation EECS 247 Lecture 4: Dynamic Range
More informationCHAPTER 4 ULTRA WIDE BAND LOW NOISE AMPLIFIER DESIGN
93 CHAPTER 4 ULTRA WIDE BAND LOW NOISE AMPLIFIER DESIGN 4.1 INTRODUCTION Ultra Wide Band (UWB) system is capable of transmitting data over a wide spectrum of frequency bands with low power and high data
More informationEE247 Lecture 2. Butterworth Chebyshev I Chebyshev II Elliptic Bessel Group delay comparison example. EECS 247 Lecture 2: Filters
EE247 Lecture 2 Material covered today: Nomenclature Filter specifications Quality factor Frequency characteristics Group delay Filter types Butterworth Chebyshev I Chebyshev II Elliptic Bessel Group delay
More informationTuesday, March 22nd, 9:15 11:00
Nonlinearity it and mismatch Tuesday, March 22nd, 9:15 11:00 Snorre Aunet (sa@ifi.uio.no) Nanoelectronics group Department of Informatics University of Oslo Last time and today, Tuesday 22nd of March:
More informationYet, many signal processing systems require both digital and analog circuits. To enable
Introduction Field-Programmable Gate Arrays (FPGAs) have been a superb solution for rapid and reliable prototyping of digital logic systems at low cost for more than twenty years. Yet, many signal processing
More informationExperiment #7 MOSFET Dynamic Circuits II
Experiment #7 MOSFET Dynamic Circuits II Jonathan Roderick Introduction The previous experiment introduced the canonic cells for MOSFETs. The small signal model was presented and was used to discuss the
More information6.976 High Speed Communication Circuits and Systems Lecture 20 Performance Measures of Wireless Communication
6.976 High Speed Communication Circuits and Systems Lecture 20 Performance Measures of Wireless Communication Michael Perrott Massachusetts Institute of Technology Copyright 2003 by Michael H. Perrott
More informationUNIVERSITY OF CALIFORNIA College of Engineering Department of Electrical Engineering And Computer Sciences MULTIFREQUENCY CELL IMPEDENCE MEASUREMENT
UNIVERSITY OF CALIFORNIA College of Engineering Department of Electrical Engineering And Computer Sciences MULTIFREQUENCY CELL IMPEDENCE MEASUREMENT EE247 Term Project Eddie Ng Mounir Bohsali Professor
More information2.Circuits Design 2.1 Proposed balun LNA topology
3rd International Conference on Multimedia Technology(ICMT 013) Design of 500MHz Wideband RF Front-end Zhengqing Liu, Zhiqun Li + Institute of RF- & OE-ICs, Southeast University, Nanjing, 10096; School
More informationSensors & Transducers Published by IFSA Publishing, S. L.,
Sensors & Transducers Published by IFSA Publishing, S. L., 208 http://www.sensorsportal.com Fully Differential Operation Amplifier Using Self Cascode MOSFET Structure for High Slew Rate Applications Kalpraj
More informationAN increasing number of video and communication applications
1470 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 32, NO. 9, SEPTEMBER 1997 A Low-Power, High-Speed, Current-Feedback Op-Amp with a Novel Class AB High Current Output Stage Jim Bales Abstract A complementary
More informationALTHOUGH zero-if and low-if architectures have been
IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 40, NO. 6, JUNE 2005 1249 A 110-MHz 84-dB CMOS Programmable Gain Amplifier With Integrated RSSI Function Chun-Pang Wu and Hen-Wai Tsao Abstract This paper describes
More informationDesign of Low Power Linear Multi-band CMOS Gm-C Filter
Design of Low Power Linear Multi-band CMOS Gm-C Filter Riyas T M 1, Anusooya S 2 PG Student [VLSI & ES], Department of Electronics and Communication, B.S.AbdurRahman University, Chennai-600048, India 1
More informationEE247 Lecture 24. EE247 Lecture 24
EE247 Lecture 24 Administrative EE247 Final exam: Date: Wed. Dec. 15 th Time: -12:30pm-3:30pm- Location: 289 Cory Closed book/course notes No calculators/cell phones/pdas/computers Bring one 8x11 paper
More informationCMOS RE-CONFIGURABLE MULTI-STANDARD RADIO RECEIVERS BIASING ANALYSIS
Électronique et transmission de l information CMOS RE-CONFIGURABLE MULTI-STANDARD RADIO RECEIVERS BIASING ANALYSIS SILVIAN SPIRIDON, FLORENTINA SPIRIDON, CLAUDIUS DAN, MIRCEA BODEA Key words: Software
More informationGeneration of Voltage-Mode OTRA-R/MOS-C LP, BP, HP, and BR Biquad Filter
Recent Researches in Instrumentation, Measurement, ircuits and Systems eneration of Voltage-Mode OTRA-R/MOS- LP, BP, HP, and BR Biquad Filter hun-ming hang, Young-Ja Ko, Zhe-Yu uo, hun-li Hou*, and Jiun-Wei
More informationChapter 5. Operational Amplifiers and Source Followers. 5.1 Operational Amplifier
Chapter 5 Operational Amplifiers and Source Followers 5.1 Operational Amplifier In single ended operation the output is measured with respect to a fixed potential, usually ground, whereas in double-ended
More informationEE247 Lecture 11. Switched-Capacitor Filters (continued) Effect of non-idealities Bilinear switched-capacitor filters Filter design summary
EE47 Lecture 11 Switched-Capacitor Filters (continued) Effect of non-idealities Bilinear switched-capacitor filters Filter design summary Comparison of various filter topologies Data Converters EECS 47
More informationA Novel SFG Structure for C-T Highpass Filters
Downloaded from orbit.dtu.dk on: Dec 17, 2017 A Novel SFG Structure for C-T Highpass Filters Nielsen, Ivan Riis Published in: Proceedings of the Eighteenth European Solid-State Circuits Conference Publication
More informationOperational Amplifier as A Black Box
Chapter 8 Operational Amplifier as A Black Box 8. General Considerations 8.2 Op-Amp-Based Circuits 8.3 Nonlinear Functions 8.4 Op-Amp Nonidealities 8.5 Design Examples Chapter Outline CH8 Operational Amplifier
More informationA low voltage rail-to-rail operational amplifier with constant operation and improved process robustness
Graduate Theses and Dissertations Graduate College 2009 A low voltage rail-to-rail operational amplifier with constant operation and improved process robustness Rien Lerone Beal Iowa State University Follow
More informationIntroduction to Surface Acoustic Wave (SAW) Devices
May 31, 2018 Introduction to Surface Acoustic Wave (SAW) Devices Part 7: Basics of RF Circuits Ken-ya Hashimoto Chiba University k.hashimoto@ieee.org http://www.te.chiba-u.jp/~ken Contents Noise Figure
More informationDesign of Reconfigurable Baseband Filter. Xin Jin
Design of Reconfigurable Baseband Filter by Xin Jin A thesis submitted to the Graduate Faculty of Auburn University in partial fulfillment of the requirements for the Degree of Master of Science Auburn,
More informationEE247 Lecture 8. Lowpass to Bandpass Transformation Table
EE47 ecture 8 ontinuoutime filter Bandpa filter Example: Gm BP filter uing imple diff. pair inearity & noie iue Variou Gm Filter implementation omparion of continuoutime filter topologie Switchedcapacitor
More informationREALIZATION OF SOME NOVEL ACTIVE CIRCUITS SYNOPSIS
REALIZATION OF SOME NOVEL ACTIVE CIRCUITS SYNOPSIS Filter is a generic term to describe a signal processing block. Filter circuits pass only a certain range of signal frequencies and block or attenuate
More informationA 100MHz CMOS wideband IF amplifier
A 100MHz CMOS wideband IF amplifier Sjöland, Henrik; Mattisson, Sven Published in: IEEE Journal of Solid-State Circuits DOI: 10.1109/4.663569 1998 Link to publication Citation for published version (APA):
More information1 Introduction RF receivers Transmission observation receiver Thesis Objectives Outline... 3
Printed in Sweden E-huset, Lund, 2016 Abstract In this thesis work, a highly linear passive attenuator and mixer were designed to be used in a wide-band Transmission Observation Receiver (TOR). The TOR
More informationDAT175: Topics in Electronic System Design
DAT175: Topics in Electronic System Design Analog Readout Circuitry for Hearing Aid in STM90nm 21 February 2010 Remzi Yagiz Mungan v1.10 1. Introduction In this project, the aim is to design an adjustable
More informationBasic OpAmp Design and Compensation. Chapter 6
Basic OpAmp Design and Compensation Chapter 6 6.1 OpAmp applications Typical applications of OpAmps in analog integrated circuits: (a) Amplification and filtering (b) Biasing and regulation (c) Switched-capacitor
More informationPART. MAX7401CSA 0 C to +70 C 8 SO MAX7405EPA MAX7401ESA MAX7405CSA MAX7405CPA MAX7405ESA V SUPPLY CLOCK
19-4788; Rev 1; 6/99 8th-Order, Lowpass, Bessel, General Description The / 8th-order, lowpass, Bessel, switched-capacitor filters (SCFs) operate from a single +5 () or +3 () supply. These devices draw
More informationVoltage Feedback Op Amp (VF-OpAmp)
Data Sheet Voltage Feedback Op Amp (VF-OpAmp) Features 55 db dc gain 30 ma current drive Less than 1 V head/floor room 300 V/µs slew rate Capacitive load stable 40 kω input impedance 300 MHz unity gain
More informationNovel CCII-based Field Programmable Analog Array and its Application to a Sixth-Order Butterworth LPF
440 S. A. MAHMOUD, E. A. SOLIMAN, NOVEL CCII-ASED FIELD PROGRAMALE ANALOG ARRA. Novel CCII-based Field Programmable Analog Array and its Application to a Sixth-Order utterworth LPF Soliman MAHMOUD 1,2,
More informationQUESTION BANK for Analog Electronics 4EC111 *
OpenStax-CNX module: m54983 1 QUESTION BANK for Analog Electronics 4EC111 * Bijay_Kumar Sharma This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 4.0 Abstract
More informationData Sheet ATF-511P8. High Linearity Enhancement Mode [1] Pseudomorphic HEMT in 2x2 mm 2 LPCC [3] Package. 1Px. Features.
ATF-511P8 High Linearity Enhancement Mode [1] Pseudomorphic HEMT in 2x2 mm 2 LPCC [3] Package Data Sheet Description Avago Technologies s ATF-511P8 is a single-voltage high linearity, low noise E-pHEMT
More informationRadivoje Đurić, 2015, Analogna Integrisana Kola 1
Low power OTA 1 Two-Stage, Miller Op Amp Operating in Weak Inversion Low frequency response: gm1 gm6 Av 0 g g g g A v 0 ds2 ds4 ds6 ds7 I D m, ds D nvt g g I n GB and SR: GB 1 1 n 1 2 4 6 6 7 g 2 2 m1
More informationLow-Power RF Integrated Circuit Design Techniques for Short-Range Wireless Connectivity
Low-Power RF Integrated Circuit Design Techniques for Short-Range Wireless Connectivity Marvin Onabajo Assistant Professor Analog and Mixed-Signal Integrated Circuits (AMSIC) Research Laboratory Dept.
More informationContinuous- Time Active Filter Design
Continuous- Time Active Filter Design T. Deliyannis Yichuang Sun J.K. Fidler CRC Press Boca Raton London New York Washington, D.C. Contents Chapter 1 Filter Fundamentals 1.1 Introduction 1 1.2 Filter Characterization
More information2. Single Stage OpAmps
/74 2. Single Stage OpAmps Francesc Serra Graells francesc.serra.graells@uab.cat Departament de Microelectrònica i Sistemes Electrònics Universitat Autònoma de Barcelona paco.serra@imb-cnm.csic.es Integrated
More informationCombination Notch and Bandpass Filter
Combination Notch and Bandpass Filter Clever filter design for graphic equalizer can perform both notch and bandpass functions Gain or attenuation is controlled by a potentiometer for specific frequency
More informationTSEK03: Radio Frequency Integrated Circuits (RFIC) Lecture 5-6: Mixers
TSEK03: Radio Frequency Integrated Circuits (RFIC) Lecture 5-6: Mixers Ted Johansson, EKS, ISY ted.johansson@liu.se Overview 2 Razavi: Chapter 6.1-6.3, pp. 343-398. Lee: Chapter 13. 6.1 Mixers general
More informationTWO AND ONE STAGES OTA
TWO AND ONE STAGES OTA F. Maloberti Department of Electronics Integrated Microsystem Group University of Pavia, 7100 Pavia, Italy franco@ele.unipv.it tel. +39-38-50505; fax. +39-038-505677 474 EE Department
More informationFeatures. Specifications. Applications
ATF-531P8 High Linearity Enhancement Mode [1] Pseudomorphic HEMT in 2x2 mm 2 LPCC [3] Package Data Sheet Description Avago Technologies ATF 531P8 is a single-voltage high linearity, low noise E phemt housed
More informationAnalog Circuits and Systems
Analog Circuits and Systems Prof. K Radhakrishna Rao Lecture 31: Waveform Generation 1 Review Phase Locked Loop (self tuned filter) 2 nd order High Q low-pass output phase compared with the input 90 phase
More informationQ1. Explain the Astable Operation of multivibrator using 555 Timer IC.
Q1. Explain the Astable Operation of multivibrator using 555 Timer I. Answer: The following figure shows the 555 Timer connected for astable operation. A V PIN 8 PIN 7 B 5K PIN6 - S Q 5K PIN2 - Q PIN3
More informationA simple 3.8mW, 300MHz, 4-bit flash analog-to-digital converter
A simple 3.8mW, 300MHz, 4bit flash analogtodigital converter Laurent de Lamarre a, MarieMinerve Louërat a and Andreas Kaiser b a LIP6 UPMC Paris 6, 2 rue Cuvier, 75005 Paris, France; b IEMNISEN UMR CNRS
More informationE4332: VLSI Design Laboratory. Columbia University Spring 2005: Lectures
E4332: VLSI Design Laboratory Nagendra Krishnapura Columbia University Spring 2005: Lectures nkrishna@vitesse.com 1 AM radio receiver AM radio signals: Audio signals on a carrier Intercept the signal Amplify
More informationDifferential Amplifier Design
Fall - 2009 EE114 - Design Project Differential Amplifier Design Submitted by Piyush Keshri (0559 4497) Jeffrey Tu (0554 4565) On November 20th, 2009 EE114 - Design Project Stanford University Page No.
More informationISSCC 2001 / SESSION 23 / ANALOG TECHNIQUES / 23.2
ISSCC 2001 / SESSION 23 / ANALOG TECHNIQUES / 23.2 23.2 Dynamically Biased 1MHz Low-pass Filter with 61dB Peak SNR and 112dB Input Range Nagendra Krishnapura, Yannis Tsividis Columbia University, New York,
More informationAnalysis and Design of Analog Integrated Circuits Lecture 18. Key Opamp Specifications
Analysis and Design of Analog Integrated Circuits Lecture 8 Key Opamp Specifications Michael H. Perrott April 8, 0 Copyright 0 by Michael H. Perrott All rights reserved. Recall: Key Specifications of Opamps
More informationKeywords: GPS, receiver, GPS receiver, MAX2769, 2769, 1575MHz, Integrated GPS Receiver, Global Positioning System
Maxim > Design Support > Technical Documents > User Guides > APP 3910 Keywords: GPS, receiver, GPS receiver, MAX2769, 2769, 1575MHz, Integrated GPS Receiver, Global Positioning System USER GUIDE 3910 User's
More informationLow-Voltage Wide Linear Range Tunable Operational Transconductance Amplifier
Low-Voltage Wide Linear Range Tunable Operational Transconductance Amplifier A dissertation submitted in partial fulfillment of the requirement for the award of degree of Master of Technology in VLSI Design
More informationHomework Assignment EE 435 Homework 4 Spring 2014 Due Wednesday Feb 26
Homework Assignment EE 435 Homework 4 Spring 2014 Due Wednesday Feb 26 In the following problems, if reference to a semiconductor process is needed, assume processes with the following characteristics:
More informationTHE rapid growth of portable wireless communication
1166 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 32, NO. 8, AUGUST 1997 A Class AB Monolithic Mixer for 900-MHz Applications Keng Leong Fong, Christopher Dennis Hull, and Robert G. Meyer, Fellow, IEEE Abstract
More information6.776 High Speed Communication Circuits and Systems Lecture 14 Voltage Controlled Oscillators
6.776 High Speed Communication Circuits and Systems Lecture 14 Voltage Controlled Oscillators Massachusetts Institute of Technology March 29, 2005 Copyright 2005 by Michael H. Perrott VCO Design for Narrowband
More informationEE4902 C Lab 5 MOSFET Common Source Amplifier with Active Load Bandwidth of MOSFET Common Source Amplifier: Resistive Load / Active Load
EE4902 C200 - Lab 5 MOSFET Common Source Amplifier with Active Load Bandwidth of MOSFET Common Source Amplifier: Resistive Load / Active Load PURPOSE: The primary purpose of this lab is to measure the
More informationALow Voltage Wide-Input-Range Bulk-Input CMOS OTA
Analog Integrated Circuits and Signal Processing, 43, 127 136, 2005 c 2005 Springer Science + Business Media, Inc. Manufactured in The Netherlands. ALow Voltage Wide-Input-Range Bulk-Input CMOS OTA IVAN
More informationKeywords - Analog Multiplier, Four-Quadrant, FVF Differential Structure, Source Follower.
Characterization of CMOS Four Quadrant Analog Multiplier Nipa B. Modi*, Priyesh P. Gandhi ** *(PG Student, Department of Electronics & Communication, L. C. Institute of Technology, Gujarat Technological
More informationAn Ultra Low-Voltage and Low-Power OTA Using Bulk-Input Technique and Its Application in Active-RC Filters
Circuits and Systems, 2011, 2, 183-189 doi:10.4236/cs.2011.23026 Published Online July 2011 (http://www.scirp.org/journal/cs) An Ultra Low-Voltage and Low-Power OTA Using Bulk-Input Technique and Its Application
More information6.976 High Speed Communication Circuits and Systems Lecture 11 Voltage Controlled Oscillators
6.976 High Speed Communication Circuits and Systems Lecture 11 Voltage Controlled Oscillators Michael Perrott Massachusetts Institute of Technology Copyright 2003 by Michael H. Perrott VCO Design for Wireless
More informationLow-voltage mixer FM IF system
DESCRIPTION The is a low-voltage monolithic FM IF system incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, logarithmic received signal strength indicator
More information