LM2904 LOW POWER DUAL OPERATIONAL AMPLIFIERS. INTERNALLY FREQUENCY COMPENSATED LARGE DC VOLTAGE GAIN : 100dB

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1 LOW POWE DUAL OPEATIONAL AMPLIFIES. INTENALLY FEQUENCY COMPENSATED LAGE DC VOLTAGE GAIN : 1dB. WIDE BANDWIDTH (unity gain) : 1.1MHz (temperature compensated) VEY LOW SUPPLY CUENT/OP (5µA). ESSENTIALLY INDEPENDENT OF SUPPLY VOLTAGE LOW INPUT BIAS CUENT : 2nA. (temperature compensated) LOW INPUT OFFSET CUENT : 2nA. INPUT COMMONMODE VOLTAGE ANGE INCLUDES GOUND. DIFFEENTIAL INPUT VOLTAGE ANGE EQUAL TO THE POWE SUPPLY VOLTAGE LAGE OUTPUT VOLTAGE SWING V TO (VCC 1.5V) N DIP8 (Plastic Package) D SO8 (Plastic Micropackage) P TSSOP8 (Thin Shrink Small Outline Package) ODE CODES DESCIPTION This circuit consists of two independent, high gain, internally frequency compensated which were designed specifically for automotive and industrial control system. It operates from a single power supply over a wide range of voltages. The low power supply drain is independentof the magnitude of the power supply voltage. Application areas include transducer amplifiers, dc gain blocks and all the conventional opamp circuits which now can be more easily implementedin single power supply systems. For example, these circuits can be directly supplied with off the standard + 5V which is usedin logic systems and will easily provide the required interface electronics without requiring any additional power supply. In the linear mode the input commonmode voltage range includes ground and the output voltage can also swing to ground, even though operated from only a single power supply voltage. January 1999 Part Temperature Package Number ange N D P 4 o C, +125 o C Example : D PIN CONNECTIONS (top view) Output 1 2 Inverting input 1 3 Noninverting input 1 4VCC Noninverting input 2 6 Inverting input 2 7 Ouput 2 8VCC + 1/12

2 SCHEMATIC DIAGAM ( ) V CC 6µA 4µA 1µA Q5 C C Q6 Inve rting input Q1 Q2 Q3 Q4 Q7 SC Noninve rting input Q11 Output Q13 Q1 Q12 Q8 Q9 5µA GND ABSOLUTE MAXIMUM ATINGS Symbol Parameter Unit V CC Supply Voltage +32 V Vi Input Voltage.3 to +32 V V id Differential Input Voltage +32 V Output Shortcircuit Duration (note 2) Ptot Power Dissipation 5 mw Iin Input Current (note 1) 5 ma T oper Operating Freeair Temperature ange 4 to +125 Tstg Storage Temperature ange 65 to +15 o C o C 2/12

3 ELECTICAL CHAACTEISTICS VCC + = +5V, VCC = Ground, VO = 1.4V, Tamb =25 o C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit V io Input Offset Voltage (note 3) Tamb =25 o C T min. T amb T max mv I io Input Offset Current Tamb =25 o C Tmin. Tamb Tmax. Iib Input Bias Current (note 4) T min. T amb T max. A vd SV I CC Vicm CM Isource Isink V OPP Large Signal Voltage Gain (V CC = +15V, L =2kΩ,V O = 1.4V to 11.4V) Tamb =25 o C Tmin. Tamb Tmax. Supply Voltage ejection atio (S = 1kΩ) (VCC + = 5 to 3V) T min. T amb T max. Supply Current, all Amp, no Load V CC = +5V, T min. T amb T max. VCC = +3V, Tmin. Tamb Tmax. Input Common Mode Voltage ange (VCC = +3V) (note 6) T min. T amb T max. Commonmode ejection atio (S = 1kΩ) T min. T amb T max V CC V CC + 2 Output Source Current (VCC = +15V, Vo = 2V, Vid = +1V) Output Current Sink (Vid = 1V) V CC = +15V, V O =2V V CC = +15V, V O = +.2V Output Voltage Swing ( L =2kΩ) T min. T amb T max. VOH High Level Output Voltage (VCC + = 3V) Tamb =25 o C L =2kΩ Tmin. Tamb Tmax. L = 1kΩ Tmin. Tamb Tmax. V OL S GBP THD V CC V CC + 2 Low Level Output Voltage ( L = 1kΩ) 5 2 T min. T amb T max. 2 Slew ate (VCC = 15V, VI =.5 to 3V, L =2kΩ,CL= 1pF, unity gain).3.6 Gain Bandwidth Product (V CC = 3V, f = 1kHz, V in = 1mV, L =2kΩ,C L = 1pF) Total Harmonic Distortion (f = 1kHz, Av = 2dB, L =2kΩ,VCC = 3V,.2 CL = 1pF, VO =2PP) na na V/mV db ma V db ma ma µa V V mv V/µs MHz % 3/12

4 ELECTICAL CHAACTEISTICS (continued) Symbol Parameter Min. Typ. Max Unit DVio Input Offset Voltage Drift 7 3 µa/ o C DI io Input Offset Current Drift 1 3 pa/ o C VO1/VO2 Channel Separation (note 5) 1kHz f 2kHz 12 db Notes : 1. This input current only exist when the voltage at any of the input leads is driven negative. It is due to the collectorbase junction of the input PNP transistor becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Opamps to go to the V CC voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output will set up again for input voltage higher than.3v. 2. Shortcircuits from the output to V CC can cause excessive heating if V + CC > 15V. The maximum output current is approximatively 4mA independent of the magnitude of V CC. Destructive dissipation can result from simultaneous shortcircuits on all amplifiers. 3. V O = 1.4V, S =Ω,5V<V + CC < 3V, < V ic < V + CC 1.5V. 4. The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output so no loading change exists on the input lines. 5. Due to the proximity of external components insure that coupling is not originating via stray capacitance between these external parts. This typically can be detected as this type of capacitance increases at higher frequences. 6. The input commonmode voltage of either input signal voltage should not be allowed to go negative by more than.3v. The upper end of the commonmode voltage range is V + CC 1.5V. But either or both inputs can go to +32V without damage. OPEN LOOP FEQUENCY ES PONS E (NOTE 3) LAGE S IGNAL FEQUENCY ES P ONSE M Ω 1k Ω 12.1µF 1k Ω +15V V CC 1 VI VO 15 V I VO VCC/2 + +7V + 2k Ω 8 6 VCC = 3V & 55 C Tamb +125 C 1 VOLTAGE GAIN (db) OUTPUT VOLTAGE (V) INPUT VOLTAGE (V) 4 2 VCC =+1to+15V& 55 C Tamb +125 C k 1k 1k 1M 1M FEQUENCY (Hz) VOLAGE FOLLOWE P ULSE ES PONSE TIME (µs) L 2 kω VCC = +15V OUTPUT SWING (Vpp) OUTPUT VOLTAGE (V) 5 1k 1k 1k 1M FEQUENCY (Hz) OUTPUT CHAACTEISTICS VCC = +5V VCC = +15V VCC = +3V vcc /2,1,1, OUTP UT S INK CUENT (ma) + v cc Tamb =+25 C VO IO 4/12

5 OUTPUT VOLTAGE (mv) INPUT CUENT (ma) VOLTAGE FOLLOWE PULSSE ESPONSE (SMALL S IGNAL) el + Output eo 5pF Inp ut Tamb =+25 C VCC =3V TIME (µs) INPUT CUENT (Note 1) VCC =+3V V CC =+15V VCC =+5V VI =V OUTPUT VOLTAGE EFEENCED TO V CC + (V) OUTPUT CUENT (ma) OUTPUT CHAACTEISTICS V CC V CC /2 + V O I O 4 Independent ofv CC 3 Tamb =+25 C 2 1,1,1, OUTPUT SOUCE CUENT (ma) CUENT LIMITING (Note 1) I O TEMPEATUE ( C) INPUT VOLTAGE ANGE TEMPEATUE ( C) SUPPLY CUENT 4 V CC INPUT VOLTAGE (V) 1 5 NØga tive Positive SUPPLY CUENT (ma) ma + I D T amb = C to +125 C Tamb =55 C POWE SUPPLY VOLTAGE ( V) POSITIVE SUPPLY VOLTAGE (V) 5/12

6 VOLTAGE GAIN (db) L L = 2k Ω = 2k Ω INPUT CUENT (na) T = +25 C amb VOLTAGE GAIN (db) POSITIVE SUPP LY VOLTAGE (V) 16 = 2k Ω POSITIVE S UPPLY VOLTAGE (V) L L = 2k Ω GAIN BANDWIDTH PODUCT (MHz) POSITIVE S UPPLY VOLTAGE (V) V = 15V CC TEMPEATUE ( C) POWE SUPPLY EJECTION ATIO (db) SV TEMPEATUE ( C) TEMPEATUE ( C) COMMON MODE EJECTION ATIO (db) /12

7 TYPICAL APPLICATIONS (single supply voltage) VCC =+5VDC AC COUPLED INVETING AMPLIFIE AC COUPLED NONINVETING AMPLIFIE e I C I ~ V CC 1 1kΩ 2 f 6.2kΩ B 3 A = f V 1 (as shown A V = 1) C o e o 1kΩ L 2V PP C1.1µF e I ~ 1 C I 3 1MΩ 2 1MΩ LM kΩ B 4 A = V 1 (as shown A V = 11) C o eo 1kΩ L 2V PP C1 1µF C2 1µF 5 V CC NONINVETING DC AMPLIFIE DC SUMMING AMPLIFIE e 1 1kΩ e O +5V A V = (As shown A V = 11) e O e 2 1 1kΩ 2 1MΩ e O (V) e 3 e I (mv) e 4 eo =e1+e2e3e4 where (e1 +e2) (e3 +e4) to keep eo V 7/12

8 HIGH INPUT Z, DC DIFFEENTIAL AMPLIFIE USING SYMMETICAL AMPLIFIES TO EDUCE INPUT CUENT V1 V o +V2 if 1 =5and 3 =4=6=7 e o =[ ] (e 2 e 1 ) As shown eo =11(e2e1). e IIB 1.5MΩ I I 2N 929.1µF 3MΩ e o Input current compensation HIGH INPUT Z ADJUSTABLE GAIN DC INSTUMENTATION AMPLIFIE LOW DIFT PEAK DETECTO 1 e 1 2 2kΩ Gain adjust e O e I Z I 1µF 2 C 2 2N 929.1µF Z o e o e MΩ 3 3MΩ Input curre nt compens ation if 1 = 5 and 3 = 4 = 6 = 7 e o = [ ] (e 2 e 1 ) 2 As shown eo =11(e2e1) 8/12

9 ACTIVE BANDPASS FILTE 1 +V MΩ C2 33pF 6 47kΩ C1 33pF 5 47kΩ 7 Vo F o = 1kHz Q=5 A V = 1 (4dB) 8 C3 1µF V CC 9/12

10 PACKAGE MECHANICAL DATA 8 PINS PLASTIC DIP PMDIP8.EPS Dimensions Millimeters Inches Min. Typ. Max. Min. Typ. Max. A a B b b D E e e e F i L Z DIP8.TBL 1/12

11 PACKAGE MECHANICAL DATA 8 PINS PLASTIC MICOPACKAGE (SO) PMSO8.EPS Dimensions Millimeters Inches Min. Typ. Max. Min. Typ. Max. A a a a b b C c1 45 o (typ.) D E e e F L M.6.24 S 8 o (max.) SO8.TBL 11/12

12 PACKAGE MECHANICAL DATA 8 PINS THIN SHINK SMALL OUTLINE PACKAGE PEVIEW Dim. Millimeters Inches Min. Typ. Max. Min. Typ. Max. A A A b c D E E e k o 8 o o 8 o l Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a trademark of STMicroelectronics 1999 STMicroelectronics Printed in Italy All ights eserved STMicroelectronics GOUP OF COMPANIES Australia Brazil Canada China France Germany Italy Japan Korea Malaysia Malta Mexico Morocco The Netherlands Singapore Spain Sweden Switzerland Taiwan Thailand United Kingdo m U.S.A. ODE CODE : 12/12

13 This datasheet has been download from: Datasheets for electronics components.

LM2904 LOW POWER DUAL OPERATIONAL AMPLIFIERS. INTERNALLY FREQUENCY COMPENSATED LARGE DC VOLTAGE GAIN : 100dB

LM2904 LOW POWER DUAL OPERATIONAL AMPLIFIERS. INTERNALLY FREQUENCY COMPENSATED LARGE DC VOLTAGE GAIN : 100dB LOW POWE DUAL OPEATIONAL AMPLIFIES INTENALLY FEQUENCY COMPENSATED LAGE DC VOLTAGE GAIN : 1dB WIDE BANDWIDTH (unity gain) : 11MHz (temperature compensated) VEY LOW SUPPLY CUENT/AMPLI (5µA) - ESSENTIALLY