TLC271, TLC271A, TLC271B. Pin Assignments. Description. New Product. Features. Applications CMOS PROGRAMMABLE LOW POWER OPERATIONAL AMPLIFIERS

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1 CMOS PROGRAMMABLE LOW POWER OPERATIONAL AMPLIFIERS Description Pin Assignments The TLC271 operational amplifier combines a wide range of input offset voltage grades with low offset voltage drift and high input impedance. In addition, the TLC271 offers a biasselect mode that allows the user to select the best combination of power dissipation and AC performance for a particular application. Using the biasselect option, these devices can be programmed to fit a wide range of applications. Three offset voltage grades are available, ranging from the lowcost TLC271 (10mV) to the TLC271B (2mV) lowoffset version. The devices are offered in both commercial and industrial operating temperature ranges. The extremely high input impedance and low bias currents, in conjunction with good commonmode and supply voltage rejection make these devices an excellent choice for high performance designs. 2OUT OUT 2IN OFFSET 2IN N2 OFFSET 1OUT N1 1IN 1IN GND Vcc (Top View) SO8 BIAS Vcc SELECT V DD The devices also feature lowvoltage singlesupply operation with a commonmode input voltage range which includes the negative rail. Features Applications Wide range of supply voltages over specified temperature range: 0 C to 70 C... 3 V to 16 V 40 C to 85 C... 4 V to 16 V SingleSupply Operation CommonMode Input Voltage Range Extends Below the Negative Rail Low Noise: 20 nv/ Hz f = 1kHz (HighBias Mode) Output Voltage Range Includes Negative Rail High Input Impedance ESDProtection Circuitry DesignedIn LatchUp Immunity Totally LeadFree & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) With the programmability options of the TLC271, a designer can choose a very low current option allowing for extended battery life or choose a higher current option for more performance. It is possible to switch performance modes as the application demands change. The TLC271 is well suited for many consumer audio, industrial and other low power applications. Audio Microphone Preamplifier Filtering Equalizers Signal Amplification Industrial Power Supply Instrumentation Metering Medical Portable Meters and Measurement Instrumentation Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See for more information about Diodes Incorporated s definitions of Halogen and Antimonyfree, "Green" and Leadfree. 3. Halogen and Antimonyfree "Green products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br Cl) and <1000ppm antimony compounds. 1 of 51

2 Ordering Information Device Operating 13 Tape and Reel Package Offset Packaging Temperature Code Voltage (Note 4) Quantity Part Number Range Suffix TLC271CS13 S 10mV 0 to 70 C SO8 2500/Tape & Reel 13 TLC271ACS13 S 5mV 0 to 70 C SO8 2500/Tape & Reel 13 TLC271BCS13 S 2mV 0 to 70 C SO8 2500/Tape & Reel 13 TLC271IS13 S 10mV 40 to 85 C SO8 2500/Tape & Reel 13 TLC271AIS13 S 5mV 40 to 85 C SO8 2500/Tape & Reel 13 TLC271BIS13 S 2mV 40 to 85 C SO8 2500/Tape & Reel 13 Note: 4. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at Pin Descriptions Pin Name Pin number Description OFFSET N1 1 Offset Control Inverting Input IN 2 Inverting Input IN 3 NonInverting Input GND 4 Ground OFFSET N2 5 Offset Control NonInverting Input OUT 6 Output V DD 7 Supply BIAS SELECT 8 Bias Mode Select 2 of 51

3 Absolute Maximum Ratings (Notes 5, 6, 7, 8, 9) Symbol Parameter Rating Unit V DD Supply Voltage (Note 6) 18 V V ID Differential Input Voltage (Note 7) ±V DD V V IN Input Voltage Range (either input) 0.3 to V DD V I IN Input Current ±5 ma I Output Current ±30 ma Output ShortCircuit to GND (Note 8) Continuous P D Power Dissipation (Note 9) 1065 mw T A C Grade 0 to 70 Operating Temperature Range C I Grade 40 to 85 T J Operating Junction Temperature 150 C T ST Storage Temperature Range 65 to 150 C ESD HBM Human Body Model ESD Protection (1.5kΩ in series with 100pF) 1.5 kv Notes: 5. Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolutemaximumrated conditions for extended periods may affect device reliability. 6. All voltage values, except differential voltages, are with respect to ground. 7. Differential input voltages are at IN with respect to IN. 8. The output may be shorted to either supply. Temperature and/or supply voltages must be limited to ensure that the maximum dissipation rating is not exceeded. 9. For operating at high temperatures, the TLC271 must be derated 8.5mW/ C to zero based on a 150 C maximum junction temperature and a thermal resistance of 117 C/W when the device is soldered to a printed circuit board, operating in a still air ambient. Recommended Operating Conditions Symbol Parameter C grade I grade Unit Min Max Min Max V DD Supply Voltage V V IC Common Mode Input Voltage V DD = 5V V V DD = 10V T A Operating Free Air Temperature C 3 of 51

4 Electrical Characteristics High Bias Mode V I α VI Parameter Conditions T A Input Offset Voltage TLC271C TLC271AC TLC271BC Average Temperature Coefficient of Input Offset Voltage I I Input Offset Current (Note 10) I IB Input Bias Current (Note 10) V ICR V H V L A VD Common Mode Input Voltage (Note 11) High Level Output Voltage Low Level Output Voltage Large Signal Differential Voltage Gain CMRR Common Mode Rejection Ratio k SVR Supply Voltage Rejection Ratio ( V DD/ V I ) TLC271C, TLC271AC, TLC271BC V DD = 5V V DD = 10V Min Typ Max Min Typ. Max V = 1.4V, V IC = 0 to 70 C V, R S = 25 C Ω, R L = 10kΩ 25 C to 70 C C to 70 C 3 3 Unit 25 C to 70 C µv/ C V = V DD/2, V IC = V DD/2 V = V DD/2, V IC = V DD/2 25 C C C C C 0 to 70 C 0.2 to to to to to to 9.2 mv pa pa V V 25 C V ID = 100mV, R L 0 C = 10kΩ 70 C V ID = 100mV, I L = 0 R L = 10kΩ (Note 12) V IC = V ICRmin 25 C C C C C C C C C C V DD = 5V to 10V, 0 C V = 1.4V 70 C I I(SEL) Input Current (BIAS SELECT) V I(SEL) = 0 25 C µa I DD Supply Current V = V DD/2, V IC = V DD/2, No load 25 C C C V mv V/mV db db µa Notes: 10. The typical values of input bias current and input offset current below 5pA were calculated. 11. This range also applies to each input individually. 12. At V DD = 5 V, V = 0.25 V to 2 V; at V DD = 10 V, V = 1 V to 6 V. 4 of 51

5 Electrical Characteristics High bias mode V I α VI Parameter Conditions T A Input Offset Voltage TLC271I TLC271AI TLC271BI Average Temperature Coefficient of Input Offset Voltage I I Input Offset Current (Note 13) I IB Input Bias Current (Note 13) V ICR V H V L A VD Common Mode Input Voltage (Note 14) High Level Output Voltage Low Level Output Voltage Large Signal Differential Voltage Gain CMRR Common Mode Rejection Ratio k SVR Supply Voltage Rejection Ratio ( V DD/ V I ) TLC271I, TLC271AI, TLC271BI V DD = 5V V DD = 10V Min Typ Max Min Typ. Max V = 1.4V, V IC = 40 to 85 C V, R S = 25 C Ω, R L = 10kΩ 25 C to 85 C C to 85 C Unit 25 to 85 C µv/ C V = V DD/2, V IC = V DD/2 V = V DD/2, V IC = V DD/2 25 C C C C to 0.3 to 0.2 to 0.3 to C V to to 0.2 to C V C V ID = 100mV, R L 40 C V = 10kΩ 85 C C V ID = 100mV, 40 C I L = 0 85 C C R L = 10kΩ (Note 40 C ) 85 C V IC = V ICRmin 25 C C C C V DD = 5V to 10V, 40 C V = 1.4V 85 C I I(SEL) Input Current (BIAS SELECT) V I(SEL) = 0 25 C µa I DD Supply Current V = V DD/2, V IC = V DD/2, No load 25 C C C mv pa pa mv V/mV db db µa Notes: 13. The typical values of input bias current and input offset current below 5pA were calculated. 14. This range also applies to each input individually. 15. At V DD = 5 V, V = 0.25 V to 2 V; at V DD = 10 V, V = 1 V to 6 V. 5 of 51

6 Electrical Characteristics High bias mode: V DD = 5V SR V n B M B 1 ɸ m Parameter Conditions T A Slew Rate at Unity Gain R L = 10kΩ, C L = 20pF See Figure 92 F = 1kHz, RS = 20Ω Equivalent Input Noise Voltage See Figure 93 Maximum Output Swing Bandwidth Unity Gain Bandwidth Phase Margin High bias mode: V DD = 10V SR V n B M B 1 ɸ m V = V H, C L = 20pF, R L = 10kΩ See Figure 92 V I(PP) = 1V V I = 10mV, C L = 20pF See Figure 94 F = B 1, V I = 10mV, C L = 20pF See Figure 94 V I(PP) = 2.5V Parameter Conditions T A Slew Rate at Unity Gain R L = 10kΩ, C L = 20pF See Figure 92 F = 1kHz, RS = 20Ω Equivalent Input Noise Voltage See Figure 93 Maximum Output Swing Bandwidth Unity Gain Bandwidth Phase Margin V = V H, C L = 20pF, R L = 10kΩ See Figure 92 V I(PP) = 1V V I = 10mV, C L = 20pF See Figure 94 F = B 1, V I = 10mV, C L = 20pF See Figure 94 V I(PP) = 5.5V TLC271C, TLC271AC, TLC271BC Unit Min Typ Max 25 C C 4 70 C 3 25 C C C C C C C C C C C 49 0 C C 46 TLC271C, TLC271AC, TLC271BC V/µs nv/ Hz khz MHz Unit Min Typ Max 25 C C C C C C C C C C C C C C 49 0 C C 46 V/µs nv/ Hz khz MHz 6 of 51

7 Electrical Characteristics High bias mode: V DD = 5V SR Parameter Conditions T A Slew rate at unity gain V n Equivalent input noise voltage B M B 1 ɸ m Maximum output swing bandwidth Unity gain bandwidth Phase margin High bias mode: V DD = 10V SR R L = 10kΩ, C L = 20pF See Figure 92 V I(PP) = 1V V I(PP) = 2.5V F = 1kHz, RS = 20Ω See Figure 93 V = V H, C L = 20pF, R L = 10kΩ 92 V I = 10mV, C L = 20pF Figure 94 See Figure See F = B 1, V I = 10mV, C L = 20pF 94 See Figure TLC271I, TLC271AI, TLC271BI Unit Min Typ Max 25 C C C C C C C C C C C C C C C C 43 Parameter Conditions T A TLC271I, TLC271AI, TLC271BI Min Typ Max 25 C 5.3 Slew rate at unity gain V n Equivalent input noise voltage B M B 1 ɸ m Maximum output swing bandwidth Unity gain bandwidth Phase margin R L = 10kΩ, C L = 20pF See Figure 92 V I(PP) = 1V V I(PP) = 5.5V F = 1kHz, RS = 20Ω See Figure 93 V = V H, C L = 20pF, R L = 10kΩ 92 V I = 10mV, C L = 20pF Figure 94 See Figure See 40 C C 4 25 C C C C C C C C C C 1.7 F = B 1, V I = 10mV, C L = 25 C 49 20pF See Figure 40 C C 46 V/µs nv/ Hz khz MHz Unit V/µs nv/ Hz khz MHz 7 of 51

8 Electrical Characteristics Medium bias mode V I α VI Parameter Conditions T A Input Offset Voltage TLC271C TLC271AC TLC271BC Average temperature coefficient of input offset voltage I I Input offset current (Note 16) I IB Input bias current (Note 16) V ICR V H V L A VD Common mode input voltage (Note 17) High level output voltage Low level output voltage Large signal differential voltage gain CMRR Common mode rejection ratio k SVR Supply voltage rejection ratio ( V DD/ V I ) TLC271C, TLC271AC, TLC271BC V DD = 5V V DD = 10V Min Typ Max Min Typ. Max V = 1.4V, V IC = 0 to 70 C V, R S = 25 C Ω, R L = 100kΩ V = V DD/2, V IC = V DD/2 V = V DD/2, V IC = V DD/2 25 C to 70 C C to 70 C 3 3 Unit 25 to 70 C µv/ C 25 C C C C C 0.2 to to to to 0 to to 0.2 to C V C V ID = 100mV, R L 0 C V = 100kΩ 70 C V ID = 100mV, I L = 0 RL = 100kΩ (Note 18) V IC = V ICRmin C C C C C C C C C C V DD = 5V to 10V, 0 C V = 1.4V 70 C I I(SEL) Input current (BIAS SELECT) V I(SEL) = 0 25 C na I DD Supply current V = V DD/2, V IC = V DD/2, No load 25 C C C mv pa pa V mv V/mV db db µa Notes: 16. The typical values of input bias current and input offset current below 5pA were calculated. 17. This range also applies to each input individually. 18. At V DD = 5 V, V = 0.25 V to 2 V; at V DD = 10 V, V = 1 V to 6 V. 8 of 51

9 Electrical Characteristics Medium bias mode V I α VI Parameter Conditions T A Input Offset Voltage TLC271I TLC271AI TLC271BI Average temperature coefficient of input offset voltage I I Input offset current (Note 19) I IB Input bias current (Note 19) V ICR V H V L A VD Common mode input voltage (Note 20) High level output voltage Low level output voltage Large signal differential voltage gain CMRR Common mode rejection ratio k SVR Supply voltage rejection ratio ( V DD/ V I ) TLC271I, TLC271AI, TLC271BI V DD = 5V V DD = 10V Min Typ Max Min Typ. Max V = 1.4V, V IC = 40 to 85 C V, R S = 25 C Ω, R L = 100kΩ V = V DD/2, V IC = V DD/2 V = V DD/2, V IC = V DD/2 25 C to 85 C C to 85 C Unit 25 to 85 C µv/ C 25 C C C C C 0.2 to to to to 40 to to 0.2 to C V C V ID = 100mV, R L 40 C V = 100kΩ 85 C V ID = 100mV, I L = 0 RL = 100kΩ (Note 21) V IC = V ICRmin C C C C C C C C C C V DD = 5V to 10V, 40 C V = 1.4V 85 C I I(SEL) Input current (BIAS SELECT) V I(SEL) = 0 25 C na I DD Supply current V = V DD/2, V IC = V DD/2, No load 25 C C C mv pa pa V mv V/mV db db µa Notes: 19. The typical values of input bias current and input offset current below 5pA were calculated. 20. This range also applies to each input individually. 21. At V DD = 5 V, V = 0.25 V to 2 V; at V DD = 10 V, V = 1 V to 6 V. 9 of 51

10 Electrical Characteristics Medium bias mode: V DD = 5V SR Parameter Conditions T A Slew rate at unity gain V n Equivalent input noise voltage B M B 1 ɸ m Maximum output swing bandwidth Unity gain bandwidth Phase margin Medium bias mode: V DD = 10V SR V n B M B 1 ɸ m R L = 100kΩ, C L = 20pF See Figure 92 V I(PP) = 1V V I(PP) = 2.5V F = 1kHz, RS = 20Ω See Figure 93 V = V H, C L = 20pF, R L = 100kΩ Figure 92 V I = 10mV, C L = 20pF Figure 94 See See F = B 1, V I = 10mV, C L = 20pF 94 See Figure Parameter Conditions T A Slew Rate at Unity Gain R L = 100kΩ, C L = 20pF See Figure 92 F = 1kHz, RS = 20Ω Equivalent Input Noise Voltage See Figure 93 Maximum Output Swing Bandwidth Unity Gain Bandwidth Phase Margin V = V H, C L = 20pF, R L = 100kΩ See Figure 92 V I(PP) = 1V V I = 10mV, C L = 20pF See Figure 94 V I(PP) = 5.5V F = B 1, V I = 10mV, C L = 20pF See Figure 94 TLC271C, TLC271AC, TLC271BC Unit Min Typ Max 25 C C C C C C C C 55 0 C C C C C C 40 0 C C 39 TLC271C, TLC271AC, TLC271BC V/µs nv/ Hz khz MHz Unit Min Typ Max 25 C C C C C C C C 35 0 C C C C C C 43 0 C C 42 V/µs nv/ Hz khz MHz 10 of 51

11 Electrical Characteristics Medium bias mode: V DD = 5V SR Parameter Conditions T A Slew rate at unity gain V n Equivalent input noise voltage B M B 1 ɸ m Maximum output swing bandwidth Unity gain bandwidth Phase margin Medium bias mode: V DD = 10V SR V n B M B 1 ɸ m R L = 100kΩ, C L = 20pF See Figure 92 V I(PP) = 1V V I(PP) = 2.5V F = 1kHz, RS = 20Ω See Figure 93 V = V H, C L = 20pF, R L = 100kΩ Figure 92 V I = 10mV, C L = 20pF Figure 94 See See F = B 1, V I = 10mV, C L = 20pF 94 See Figure Parameter Conditions T A Slew Rate at Unity Gain R L = 100kΩ, C L = 20pF See Figure 92 F = 1kHz, RS = 20Ω Equivalent Input Noise Voltage See Figure 93 Maximum Output Swing Bandwidth Unity Gain Bandwidth Phase Margin V = V H, C L = 20pF, R L = 100kΩ See Figure 92 V I(PP) = 1V V I = 10mV, C L = 20pF See Figure 94 V I(PP) = 5.5V F = B 1, V I = 10mV, C L = 20pF See Figure 94 TLC271I, TLC271AI, TLC271BI Unit Min Typ Max 25 C C C C C C C C C C C C C C C C 38 TLC271I, TLC271AI, TLC271BI V/µs nv/ Hz khz MHz Unit Min Typ Max 25 C C C C C C C C C C C C C C C C 41 V/µs nv/ Hz khz MHz 11 of 51

12 Electrical Characteristics Low bias mode V I α VI Parameter Conditions T A Input Offset Voltage TLC271C TLC271AC TLC271BC Average Temperature Coefficient of Input Offset Voltage I I Input Offset Current (Note 22) I IB Input Bias Current (Note 22) V ICR V H V L A VD Common Mode Input Voltage (Note 23) High Level Output Voltage Low Level Output Voltage Large Signal Differential Voltage Gain CMRR Common Mode Rejection Ratio k SVR Supply Voltage Rejection Ratio ( V DD/ V I ) TLC271C, TLC271AC, TLC271BC V DD = 5V V DD = 10V Min Typ Max Min Typ. Max V = 1.4V, V IC = 0 to 70 C V, R S = 25 C Ω, R L = 1MΩ 25 C to 70 C C to 70 C 3 3 Unit 25 to 70 C µv/ C V = V DD/2, V IC = V DD/2 V = V DD/2, V IC = V DD/2 25 C C C C to 0.3 to 0.2 to 0.3 to C V to to 0.2 to C V C V ID = 100mV, R L 0 C V = 1MΩ 70 C C V ID = 100mV, 0 C I L = 0 70 C C R L = 1MΩ (Note 0 C ) 70 C V IC = V ICRmin 25 C C C C V DD = 5V to 10V, 0 C V = 1.4V 70 C I I(SEL) Input Current (BIAS SELECT) V I(SEL) = 0 25 C na I DD Supply Current V = V DD/2, V IC = V DD/2, No load 25 C C C mv pa pa mv V/mV db db µa Notes: 22. The typical values of input bias current and input offset current below 5pA were calculated. 23. This range also applies to each input individually. 24. At V DD = 5 V, V = 0.25 V to 2 V; at V DD = 10 V, V = 1 V to 6 V. 12 of 51

13 Electrical Characteristics Low bias mode V I α VI Parameter Conditions T A Input Offset Voltage TLC271I TLC271AI TLC271BI Average Temperature Coefficient of Input Offset Voltage I I Input Offset Current (Note 25) I IB Input Bias Current (Note 25) V ICR V H V L A VD Common Mode Input Voltage (Note 26) High Level Output Voltage Low Level Output Voltage Large Signal Differential Voltage Gain CMRR Common Mode Rejection Ratio k SVR Supply Voltage Rejection Ratio ( V DD/ V I ) TLC271I, TLC271AI, TLC271BI V DD = 5V V DD = 10V Min Typ Max Min Typ. Max V = 1.4V, V IC = 40 to 85 C V, R S = 25 C Ω, R L = 1MΩ V = V DD/2, V IC = V DD/2 V = V DD/2, V IC = V DD/2 25 C to 85 C C to 85 C Unit 25 to 85 C µv/ C 25 C C C C to 0.3 to 0.2 to 0.3 to C V to to 0.2 to C V C V ID = 100mV, R L 40 C V = 1MΩ 85 C C V ID = 100mV, 40 C I L = 0 85 C C R L = 1MΩ (Note 40 C ) 85 C V IC = V ICRmin 25 C C C C V DD = 5V to 10V, 40 C V = 1.4V 85 C I I(SEL) Input Current (BIAS SELECT) V I(SEL) = 0 25 C na I DD Notes: Supply Current V = V DD/2, V IC = V DD/2, No 25 C C load 85 C The typical values of input bias current and input offset current below 5pA were calculated. 26. This range also applies to each input individually. 27. At V DD = 5 V, V = 0.25 V to 2 V; at V DD = 10 V, V = 1 V to 6 V. mv pa pa mv V/mV db db µa 13 of 51

14 Electrical Characteristics Low bias mode: V DD = 5V SR V n B M B 1 ɸ m Parameter Conditions T A Slew Rate at Unity Gain R L = 1MΩ, C L = 20pF See Figure 92 F = 1kHz, RS = 20Ω Equivalent Input Noise Voltage See Figure 93 Maximum Output Swing Bandwidth Unity Gain Bandwidth Phase Margin Low bias mode: V DD = 10V SR V n B M B 1 ɸ m V I(PP) = 1V V I(PP) = 2.5V TLC271C, TLC271AC, TLC271BC Unit Min Typ Max 25 C C C C C C C C 5 V = V H, C L = 20pF, R L = 1MΩ 0 C 6 See Figure C 4.5 V I = 10mV, C L = 20pF See Figure 94 F = B 1, V I = 10mV, C L = 20pF See Figure 94 Parameter Conditions T A Slew Rate at Unity Gain R L = 1MΩ, C L = 20pF See Figure 92 F = 1kHz, RS = 20Ω Equivalent Input Noise Voltage See Figure 93 Maximum Output Swing Bandwidth Unity Gain Bandwidth Phase Margin V I(PP) = 1V V I(PP) = 5.5V 25 C 85 0 C C C 34 0 C C 30 TLC271C, TLC271AC, TLC271BC V/µs nv/ Hz khz MHz Unit Min Typ Max 25 C C C C C C C C 1 V = V H, C L = 20pF, R L = 1MΩ 0 C 1.3 See Figure C 0.9 V I = 10mV, C L = 20pF See Figure C C C C 38 F = B 1, V I = 10mV, C L = 20pF 0 C 40 See Figure C 34 V/µs nv/ Hz khz MHz 14 of 51

15 Electrical Characteristics Low bias mode: V DD = 5V SR V n B M B 1 ɸ m Parameter Conditions T A Slew Rate at Unity Gain R L = 1MΩ, C L = 20pF See Figure 92 F = 1kHz, RS = 20Ω Equivalent Input Noise Voltage See Figure 93 Maximum Output Swing Bandwidth Unity Gain Bandwidth Phase Margin Low bias mode: V DD = 10V SR V n B M B 1 ɸ m V I(PP) = 1V V I(PP) = 2.5V TLC271I, TLC271AI, TLC271BI Unit Min Typ Max 25 C C C C C C C C 5 V = V H, C L = 20pF, R L = 1MΩ 40 C 7 See Figure C 4 V I = 10mV, C L = 20pF See Figure 94 F = B 1, V I = 10mV, C L = 20pF See Figure 94 Parameter Conditions T A Slew Rate at Unity Gain R L = 1MΩ, C L = 20pF See Figure 92 F = 1kHz, RS = 20Ω Equivalent Input Noise Voltage See Figure 93 Maximum Output Swing Bandwidth Unity Gain Bandwidth Phase Margin V I(PP) = 1V V I(PP) = 5.5V 25 C C C C C C 28 TLC271I, TLC271AI, TLC271BI V/µs nv/ Hz khz MHz Unit Min Typ Max 25 C C C C C C C C 1 V = V H, C L = 20pF, R L = 1MΩ 40 C 1.4 See Figure C 0.8 V I = 10mV, C L = 20pF See Figure 94 F = B 1, V I = 10mV, C L = 20pF See Figure C C C C C C 32 V/µs nv/ Hz khz MHz 15 of 51

16 Typical Performance Characteristics Table Index of Graphs High Bias Mode Figure Medium Bias Mode Low Bias Mode V I Input Offset Voltage Distribution 1,2 31,32 61,62 V H High Level Output Voltage vs. High Level Output Current 3,4 33,34 63,64 vs. Supply Voltage vs. Free Air Temperature vs. Common Mode Input Voltage 7,8 37,38 67,68 V L Low Level Output Voltage vs. Differential Input Voltage vs. Free Air Temperature A VD I IB I I V IC Large Signal Differential Voltage Gain Input Bias Current Input Offset Current vs. Low Level Output Current 11,12 41,42 71,72 vs. Supply Voltage vs. Free Air Temperature vs. Free Air Temperature vs. Free Air Temperature Common Mode Input Voltage vs. Supply Voltage I DD Supply Current vs. Supply Voltage vs. Free Air Temperature SR I sel V ( PP) B 1 A VD Slew Rate Bias Select Current vs. Supply Voltage vs. Free Air Temperature vs. Supply Voltage Maximum Peak to Peak Output Voltage vs. Frequency Unity Gain Bandwidth vs. Free Air Temperature vs. Supply Voltage Large Signal Differential Voltage Gain vs. Frequency 29,30 59,60 89,90 ɸ m Phase Margin vs. Supply Voltage vs. Free Air Temperature V n vs. Capacitive Load Equivalent Input Noise Voltage vs. Frequency ɸ shift Phase Shift vs. Frequency 29,30 59,60 89,90 16 of 51

17 Typical Performance Characteristics High Bias Mode Figure 1 Figure 2 Figure 3 Figure 4 17 of 51

18 Typical Performance Characteristics High Bias Mode Figure 5 Figure 6 Figure 7 Figure 8 18 of 51

19 Typical Performance Characteristics High Bias Mode Figure 9 Figure 10 Figure 11 Figure of 51

20 Typical Performance Characteristics High Bias Mode Figure 13 Figure 14 Figure 15 Figure of 51

21 Typical Performance Characteristics High Bias Mode Figure 17 Figure 18 Figure 19 Figure of 51

22 Typical Performance Characteristics High Bias Mode Figure 21 Figure 22 Figure 23 Figure of 51

23 Typical Performance Characteristics High Bias Mode Figure 25 Figure 26 Figure 27 Figure of 51

24 Typical Performance Characteristics High Bias Mode Figure 29 Figure 30 Typical Performance Characteristics Medium Bias Mode Figure 31 Figure of 51

25 Typical Performance Characteristics Medium Bias Mode Figure 33 Figure 34 Figure 35 Figure of 51

26 Typical Performance Characteristics Medium Bias Mode Figure 37 Figure 38 Figure 39 Figure of 51

27 Typical Performance Characteristics Medium Bias Mode Figure 41 Figure 42 Figure 43 Figure of 51

28 Typical Performance Characteristics Medium Bias Mode Figure 45 Figure 46 Figure 47 Figure of 51

29 Typical Performance Characteristics Medium Bias Mode Figure 49 Figure 50 Figure 51 Figure of 51

30 Typical Performance Characteristics Medium Bias Mode Figure 53 Figure 54 Figure 55 Figure of 51

31 Typical Performance Characteristics Medium Bias Mode Figure 57 Figure 58 Figure 59 Figure of 51

32 Typical Performance Characteristics Low Bias Mode Figure 61 Figure 62 Figure 63 Figure of 51

33 Typical Performance Characteristics Low Bias Mode Figure 65 Figure 66 Figure 67 Figure of 51

34 Typical Performance Characteristics Low Bias Mode Figure 69 Figure 70 Figure 71 Figure of 51

35 Typical Performance Characteristics Low Bias Mode Figure 73 Figure 74 Figure 75 Figure of 51

36 Typical Performance Characteristics Low Bias Mode Figure 77 Figure 78 Figure 79 Figure of 51

37 Typical Performance Characteristics Low Bias Mode Figure 81 Figure 82 Figure 83 Figure of 51

38 Typical Performance Characteristics Low Bias Mode Figure 85 Figure 86 Figure 87 Figure of 51

39 Typical Performance Characteristics Low Bias Mode Figure 89 Figure of 51

40 Application Information Bias select feature The TLC271 offers a biasselect feature that allows the user to select any one of three bias levels depending on the level of performance desired. The tradeoff between bias levels relates to ac performance and power dissipation as below. Typical values T A = 25 C, V DD = 5V Mode High bias Medium bias Low bias Units R L =10kΩ R L =100kΩ R L =1MΩ P D Power Dissipation mw SR Slew Rate V/µs V n Equivalent Input Noise Voltage at f=1khz nv Hz B 1 Unity Gain Bandwidth MHz ɸ m Phase Margin A VD Large Signal Differential Voltage Amplification V/mV Bias selection Bias selection is achieved by connecting the bias select pin to one of three voltage levels (see below). For mediumbias applications, it is recommended that the bias select pin be connected to the midpoint between the supply rails. This procedure is simple in splitsupply applications, since this point is ground. In singlesupply applications, the mediumbias mode necessitates using a voltage divider as indicated below. The use of largevalue resistors in the voltage divider reduces the current drain of the divider from the supply line. However, largevalue resistors used in conjunction with a largevalue capacitor require significant time to charge the supply to the midpoint after the supply is switched on. A voltage other than the midpoint can be used if it is within the voltages specified table. VDD To the Bias Select Pin Low Medium High 1 MΩ 1 MΩ 0.01 µf Bias Mode Low Medium High Bias Select Voltage (Single Supply) V DD 1 V to V DD 1 V GND Figure 91 HighBias Mode In highbias mode, the TLC271 series features low offset voltage drift, high input impedance and low noise. Speed in this mode approaches that of BiFET devices but at only a fraction of the power dissipation. Unitygain bandwidth is typically greater than 1 MHz. MediumBias Mode The TLC271 in mediumbias mode features low offset voltage drift, high input impedance and low noise. Speed in this mode is similar to generalpurpose bipolar devices, but power dissipation is only a fraction of that consumed by bipolar devices. LowBias Mode In lowbias mode, the TLC271 features low offset voltage drift, high input impedance, extremely low power consumption and high differential voltage gain. 40 of 51

41 Application Information (cont.) Parameter measurement circuits Because the TLC271 is optimized for singlesupply operation, circuit configurations used for the various tests can present some difficulties since the input signal must be offset from ground. This issue can be avoided by testing the device with split supplies and the output load tied to the negative rail. Example circuits are shown below. VDD VDD VI C L R L VO VI C L R L VO VDD (a) Single Supply (b) Split Supply Figure 92 Measurement circuit with either single or split supply 2 kω 2 kω ½ VDD 20 Ω 20 Ω VDD C L R L VO 20 Ω 20 Ω VDD C L R L VO VDD (a) Single Supply (b) Split Supply Fig 93 Noise measurement with single or split supply 10 kω 10 kω V I ½ VDD 100 Ω VDD C L VO V I 100 Ω VDD C L VO VDD (a) Single Supply (b) Split Supply Figure 94 Gain of 100 with single or split supply Document number: DS35395 Rev of 51

42 Application Notes Offset Voltage Nulling Circuit The TLC271 offers external input offset null control. Nulling of the input off set voltage may be achieved by adjusting a 100kΩ potentiometer connected between the offset null terminals with the wiper connected as shown in Figure 95. The amount of nulling range varies with the bias selection. In the highbias mode, the nulling range allows the maximum offset voltage specified to be trimmed to zero. In lowbias and mediumbias modes, total nulling may not be possible. VDD IN VDD N1 TLC271 N2 IN N1 TLC271 VDD IN IN VDD N2 VDD /2 (a) Single Supply (b) Split Supply Figure 95 Offset Nulling Circuits Input Bias Current Error Protection The TLC271 has an extremely high input impedance. To use the inputs as a high impedance node, for example, greater than 100K, or to accurately measure bias current, it will be necessary to place a guard ring around the input pins and drive this ring to a potential equivalent to the common mode input voltage. In many cases this common mode potential may exist as a part of the feedback circuit and can be obtained from one of the appropriate nodes. In the case for the SO8 package, pin 4 is connected to ground or Vdd. Input pins 2 and 3 are normally well above the voltage on pin 4 so a large potential voltage on the order of several volts is likely between pins 3 and 4. To prevent interference with a 1 pa bias current the board resistance would need to be in the order of gigaohms to have a minimum impact. The goal is to have the common mode potential on the guard ring, therefore reducing the stray voltage near the input pins to millivolts in normal applications. Any solder flux residue, excess moisture, humidity or board contamination will be detrimental to using the device in a high impedance input mode. 8 5 V= VIC 1 4 Figure 96 Bias Current Guarding for High Input Impedance Applications Document number: DS35395 Rev of 51

43 Typical Application Circuits VDD R1 R4 VI Vref R3 R2 C 0.01 µf Vref VO = VO R3 = VDD R1 R3 ( R4 Vref VI) R2 Vref Figure 97 Inverting Amplifier With Voltage Reference 10 kω VI 10 kω 10 kω 5V TLC271 Bias Select 10 kω µf 5V TLC271 Bias Select 10 kω µf 5V TLC271 Bias Select Low Pass High Pass 5 kω R = 5 kω(3/d1) where d=damping factor I/O Figure 98 State Variable Filter Band Pass 9V VO VO(pp)=8V 10 kω C=0.01 µf 10 kω 9V TLC271 Bias Select R1, 100 kω 100 kω R2 9V TLC271 Bias Select VO 1 F O= 4C(R2) VO(pp)=4V [ ] R1 R2 5 kω R3, 47 kω Figure 99 Single Supply Function Generator Document number: DS35395 Rev of 51

44 Typical Application Circuits (cont.) VI VI 5V TLC271 5V 5V TLC271 5V Bias Select Bias Select 10 kω 10 kω 100 kω 5V TLC271 5V 95 kω Bias Select R1=10 kω Noninductive 10 kω Figure 100 Low Power Instrumentation Amplifier VI R 10 MΩ 2C 540 pf R/2 5 MΩ R 10 MΩ 5V TLC271 f notch Bias Select 1 = 2πRC VO C 270 pf C 270 pf Figure 101 Single Supply TwinT Notch Filter Document number: DS35395 Rev of 51

45 Typical Application Circuits (cont.) VI =3.5 to 15 V 1.2 kω 100 kω 0.47 µf TL kω 4.7 kω 0.1 µf TLC271 1 kω Bias Select 15 Ω 250 µf 25 V VO =2 V I O=0 to 2 A 47 kω 10 kω 22 kω 110 Ω 0.01 µf Figure 102 Power Supply VI 12V TLC271 Bias Select H.P V TLC271 N.O. Bias 0.5 µf Reset Select 100 kω Mylar VO Figure 103 Positive Peak Detector Document number: DS35395 Rev of 51

46 Typical Application Circuits (cont.) 470 kω 1N V 100 kω 100 kω 47 kω TLC271 Bias 2.5V Select VO fo = π 1 2 R1R2C1C2 1 µf 100 kω R1 68 kω C1 2.2 nf R2 68 kω C2 2.2 nf VO(PP) = 2 V Figure 104 Wein Oscillator 5V VI 0.1 µf 1 MΩ TLC V Bias Select 0.22 µf VO 100 kω 1 MΩ 100 kω 10 kω 0.1 µf Figure 105 SingleSupply AC Amplifier Document number: DS35395 Rev of 51

47 Typical Application Circuits (cont.) Low to medium impedance dynamic mike 0.1 µf 0.1 µf 100 kω 10 kω 1 kω 100 kω 5V TLC271 Gain Control 1 MΩ 2.5V Bias Select 1 µf VO 100 kω Figure 106 Microphone Preamplifier 10 MΩ VDD 15 nf TLC271 VDD/2 Bias 100 pf Vref Select TLC271 VDD VDD/2 Bias Select VO Conditions: VDD =4 V to 15 V Vref =0 V to VDD2V 100 kω Figure 107 PhotoDiode Amplifier With Ambient Light Rejection Conditions: VI = 0 V to 3 V IS VI = VI R 5 V TLC V Bias Select 2N3821 IS R Figure 108 Precision LowCurrent Sink Document number: DS35395 Rev of 51

48 Typical Application Circuits (cont.) VI Bias Select TLC271 VDD VO Select S1 S2 AV VDD =5 V to 12 V S1 S2 C A C A X1 1 X2 2 VDD 4066 Analog Switch B B 90 kω 9 kω 1 kω Figure 109 Amplifier With Digital Gain Selection 500 kω 5V 5V Bias Select TLC271 VO1 500 kω TLC271 Bias Select VO µf 500 kω 500 kω Figure 110 Multivibrator Document number: DS35395 Rev of 51

49 Typical Application Circuits (cont.) 10 kω VDD VI 20 kω TLC271 Bias Select VO 100 kω Figure 111 Full Wave Rectifier µf VI 10 kω 10 kω µf VDD Bias Select TLC271 VO Nomalized to FC = 1 khz and RL = 10 kω Figure 112 TwoPole LowPass Butterworth Filter Document number: DS35395 Rev of 51

50 0.254 New Product Marking Information SO8 Part mark C271C C271AC C271BC C271I C271AI C271BI Part number TLC271CS TLC271ACS TLC271BCS TLC271IS TLC271AIS TLC271BIS Package Outline Dimensions Please see AP02002 at for the latest version. e D b E1 A2 E A A3 A1 h Detail A 45 L 7 ~9 Gauge Plane Seating Plane Detail A SO8 Dim Min Max A 1.75 A A A b D E E e 1.27 Typ h 0.35 L All Dimensions in mm Document number: DS35395 Rev of 51

51 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safetyrelated requirements concerning their products and any use of Diodes Incorporated products in such safetycritical, life support devices or systems, notwithstanding any devices or systemsrelated information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safetycritical, life support devices or systems. Copyright 2014, Diodes Incorporated Document number: DS35395 Rev of 51

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