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| Low Cost, High Performance, CMOS Rail-to-Rail Output Operational Amplifier AD8692 FEATURES Offset voltage: 400 V typ Low offset voltage drift: 6 V/C maximum Very low input bias currents: 1 pA maximum Low noise: 8 nV/Hz Low distortion: 0.0006% Wide bandwidth: 10 MHz Unity gain stable Single-supply operation: 2.7 V to 6 V PIN CONFIGURATIONS OUT A 1 -IN A 2 +IN A 3 V- 4 8 AD8692 TOP VIEW (Not to Scale) V+ OUT B +IN B 04991-001 04991-002 7 6 5 -IN B Figure 1. 8-Lead MSOP Pin Configuration OUT A 1 8 V+ OUT B APPLICATIONS Photodiode amplification Battery-powered instrumentation Medical instruments Multipole filters Sensors Portable audio devices -IN A 2 +IN A 3 AD8692 7 6 -IN B TOP VIEW V- 4 (Not to Scale) 5 +IN B Figure 2. 8-Lead SOIC Pin Configuration GENERAL DESCRIPTION The AD8692 is a low cost, dual rail-to-rail output, single-supply amplifier featuring low offset voltage, low input voltage and current noise, and wide signal bandwidth. The combination of low offset, low noise, very low input bias currents, and high speed makes this amplifier useful in a wide variety of applications. Filters, integrators, photodiode amplifiers, and high impedance sensors all benefit from the combination of performance features. Audio and other ac applications benefit from the wide bandwidth and low distortion. Applications for this amplifier include PA controls, laser diode control loops, portable and loop-powered instrumentation, audio amplification for portable devices, and ASIC input and output amplifiers. The AD8692 is specified over the extended industrial temperature range of -40C to +125C. The AD8692 is available in the micro-SOIC and 8-lead narrow SOIC surface-mount packages. Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 (c) 2004 Analog Devices, Inc. All rights reserved. AD8692 TABLE OF CONTENTS Electrical Characteristics ................................................................. 3 Absolute Maximum Ratings............................................................ 5 Thermal Characteristics .............................................................. 5 ESD Caution.................................................................................. 5 Typical Performance Characteristics ..............................................6 Outline Dimensions ....................................................................... 11 Ordering Guide .......................................................................... 11 REVISION HISTORY 10/04--Revision 0: Initial Version Rev. 0 | Page 2 of 12 AD8692 ELECTRICAL CHARACTERISTICS VS = 2.7 V, VCM = VS/2, TA = 25C, unless otherwise noted. Table 1. Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Symbol VOS IB -40C < TA < +85C -40C < TA < +125C Input Offset Current IOS -40C < TA < +85C -40C < TA < +125C Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Current Closed-Loop Output Impedance POWER SUPPLY Power-Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time Gain Bandwidth Product Phase Margin Total Harmonic Distortion + Noise NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Density CMRR AVO VOS/T VOH VOL ISC ZOUT PSRR ISY VCM = -0.3 V to +1.6 V VCM = -0.1 V to +1.6 V; -40C < TA < +125C RL = 2 k, VO = 0.5 V to 2.2 V -0.3 70 65 90 90 85 250 1.3 2.66 25 20 12 80 75 95 95 0.85 40 50 0.1 Conditions VCM = -0.3 V to +1.6 V VCM = -0.1 V to +1.6 V; -40C < TA < +125C Min Typ 0.4 0.2 Max 2.0 3.0 1 50 260 0.5 20 75 +1.6 Unit mV mV pA pA pA pA pA pA V dB dB V/mV V/C V V mV mV mA dB dB mA mA V/s s MHz Degrees % 3.0 12 V p-p nV/Hz nV/Hz pA/Hz 6.0 IL = 1 mA -40C < TA < +125C IL = 1 mA -40C < TA < +125C f = 1 MHz, AV = 1 VS = 2.7 V to 5.5 V -40C < TA < +125C VO = 0 V -40C < TA < +125C RL = 2 k To 0.01% 2.64 2.6 0.95 1.2 SR tS GBP Oo THD+N en p-p en en in G = 1, RL = 600 , f = 1 kHz, VO = 250 mV p-p f = 0.1 Hz to 10 Hz f = 1 kHz f = 10 kHz f = 1 kHz 5 1 10 60 0.003 1.6 8 6.5 0.05 Rev. 0 | Page 3 of 12 AD8692 VS = 5.0 V, VCM = VS/2, TA = 5C, unless otherwise noted. Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Symbol VOS IB -40C < TA < +85C -40C < TA < +125C Input Offset Current IOS -40C < TA < +85C -40C < TA < +125C Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High CMRR AVO VOS/T VOH VCM = -0.3 V to +3.9 V VCM = -0.1 V to +3.9 V; -40C < TA < +125C VO = 0.5 V to 4.5 V, RL = 2 k, VCM = 0 V -0.3 75 70 250 95 95 2,000 1.3 4.98 4.78 16.5 165 80 10 80 75 95 95 0.95 40 210 290 0.1 Conditions VCM = -0.3 V to +3.9 V VCM = -0.1 V to +3.9 V; -40C < TA < +125C Min A Grade Typ 0.4 0.2 Max 2.0 3.0 1 50 260 0.5 20 75 +3.9 Unit mV mV pA pA pA pA pA pA V dB dB V/mV V/C V V V mV mV mV mA dB dB mA mA V/s s kHz MHz Degrees % 3.0 12 V p-p nV/Hz nV/Hz pA/Hz 6 Voltage Low VOL IL = 1 mA IL = 10 mA -40C to +125C IL = 1 mA IL = 10 mA -40C to +125C f = 1 MHz, AV = 1 VS = 2.7 V to 5.5 V -40C < TA < +125C VO = 0 V -40C < TA < +125C RL = 2 k To 0.01% <1% distortion 4.96 4.7 4.6 Short-Circuit Current Closed-Loop Output Impedance POWER SUPPLY Power-Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time Full Power Bandwidth Gain Bandwidth Product Phase Margin Total Harmonic Distortion + Noise NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Density ISC ZOUT PSRR ISY 1.05 1.3 SR tS BWP GBP Oo THD+N en p-p en en in G = 1, RL = 600 , f = 1 kHz, VO = 1 V p-p f = 0.1 Hz to 10 Hz f = 1 kHz f = 10 kHz f = 1 kHz 5 1 360 10 65 0.0006 1.6 8 6.5 0.05 Rev. 0 | Page 4 of 12 AD8692 ABSOLUTE MAXIMUM RATINGS TA = 25C, unless otherwise noted. Table 3. Parameters Supply Voltage Input Voltage Differential Input Voltage Output Short-Circuit Duration to Gnd1 Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature Range (Soldering, 60 s) Ratings 6V VSS - 0.3 V to VDD + 0.3 V 6 V Observe derating curves -65C to +150C -40C to +125C -65C to +150C 300C Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. THERMAL CHARACTERISTICS Table 4. Package Type 8-Lead MSOP (RM) 8-Lead SOIC (R) JA 210 158 JC 45 43 Unit C/W C/W 1 JA is specified for the worst-case conditions, that is, the device soldered in the circuit board for surface-mount packages. ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. 0 | Page 5 of 12 AD8692 TYPICAL PERFORMANCE CHARACTERISTICS VS = +5 V or 2.5 V. 2.5k VS = 5V VCM = -0.3V TO +3.9V 2.0k NUMBER OF AMPLIFIERS 300 VS = 5V AND 2.7V 250 200 1.5k IB (pA) 150 100 50 1.0k 500 0 04991-003 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 VOS (mV) TEMPERATURE (C) Figure 3. Input Offset Voltage Distribution 30 VS = 5V AND 2.7V VCM = 2.5V TA = -40C TO +125C 2.0 1.8 1.6 1.4 ISY (mA) 1.2 1.0 0.8 0.6 0.4 0.2 04991-004 Figure 6. Input Bias Current vs. Temperature 25 NUMBER OF AMPLIFIERS 20 15 10 5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 0 1 2 3 VSY (V) 4 5 6 7 TCVOS (V/C) Figure 4. Input Offset Voltage Drift Distribution 2.0k 1.6k VS = 5V TA = 25C Figure 7. Supply Current vs. Supply Voltage 2.5 VS = 2.5V AND 1.35V 2.0 ISY @ 2.5V INPUT OFFSET VOLTAGE (V) 1.2k SUPPLY CURRENT (mA) 800 400 0 -400 -800 -1.2k -1.6k 04991-005 ISY @ 1.35V 1.5 1.0 0.5 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6 3.9 COMMON-MODE VOLTAGE (V) -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 5. Input Offset Voltage vs. Common-Mode Voltage Figure 8. Supply Current vs. Temperature Rev. 0 | Page 6 of 12 04991-008 -2.0k -0.3 0 0 -40 04991-007 0 0 04991-006 0 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 -50 AD8692 10k OUTPUT VOLTAGE TO SUPPLY RAIL (mV) 100 80 VSY = 2.5V, 1.35V RL = 2k CL = 15pF 1k OPEN-LOOP GAIN (dB) SOURCE 100 SINK 60 40 20 0 -20 90 45 0 -45 -90 PHASE (Degrees) 04991-014 04991-013 04991-012 10 1 04991-009 0.1 0.001 -40 0.01 0.1 1 10 100 1k 10k 100k 1M 10M LOAD CURRENT (mA) FREQUENCY (Hz) Figure 9. Output Voltage to Supply Rail vs. Load Current Figure 12. Open-Loop Gain and Phase vs. Frequency 35 VS = 5V 30 OUTPUT VOLTAGE SWING (mV) 120 VS = 5V AND 2.7V 100 VDD - VOH @ 1mA 25 80 20 VOL @ 1mA 15 10 5 0 -40 CMRR (dB) 04991-010 60 40 20 -20 0 20 40 60 80 100 120 140 0 1k 10k 100k FREQUENCY (Hz) 1M 10M TEMPERATURE (C) Figure 10. Output Voltage Swing vs. Temperature (IL = 1 mA) 350 VS = 5V 300 OUTPUT VOLTAGE SWING (mV) Figure 13. CMRR vs. Frequency 120 VS = 5V AND 2.7V VDD - VOH @ 10mA 100 250 80 200 150 100 50 0 -40 VOL @ 10mA PSRR (dB) 04991-011 60 40 20 -20 0 20 40 60 80 100 120 140 0 10 100 1k 10k 100k 1M 10M TEMPERATURE (C) FREQUENCY (Hz) Figure 11. Output Voltage Swing vs. Temperature (IL = 10 mA) Figure 14. PSRR vs. Frequency Rev. 0 | Page 7 of 12 AD8692 10k 1k 100 IMPEDANCE () VS = 2.5V AV = 100 AV = 10 AV = 1 VOLTAGE (1V/DIV) VS = 5V CL = 200pF RL = AV = 1 10 1 0.1 0.01 0.001 04991-015 1k 10k 100k 1M 10M FREQUENCY (Hz) TIME (400nV/DIV) Figure 15. Closed-Loop Output Impedance vs. Frequency Figure 18. Large Signal Transient Response 40 35 30 VS = 5V AND 2.7V RL = AV = 1 VS = 2.5V AV = -50 OVERSHOOT (%) 25 20 15 10 5 0 VOUT (V) 0 -2.5 100 VIN (mV) 0 04991-016 1 10 100 1k LOAD CAPACITANCE (pF) TIME (400ns/DIV) Figure 16. Small Signal Overshoot vs. Load Capacitance Figure 19. Positive Overload Recovery VOLTAGE (50mV/DIV) VOUT (V) VS = 2.5V, 1.35V RL = 10k CL = 200pF AV = 1 VS = 2.5V AV = -50 2.5 0 0 VIN (mV) -100 04991-017 TIME (200ns/DIV) TIME (400ns/DIV) Figure 17. Small Signal Transient Response Figure 20. Negative Overload Recovery Rev. 0 | Page 8 of 12 04991-020 04991-019 04991-018 0.0001 100 AD8692 0.1 VS = 2.5V AV = 1 VIN = 1V p-p BW = 20kHz 1k VS = 2.5V AND 1.35V RL = 600 RL = 1k NOISE (nV/ Hz) 0.01 100 THD + N (%) 0.001 10 RL = 100k 04991-021 100 1k FREQUENCY (Hz) 10k 20k 1 10 100 FREQUENCY (Hz) 1k 10k Figure 21. THD + N vs. Frequency Figure 23. Voltage Noise Density 150 VS = 5V AND 2.7V +2.5V V+ VIN 28mV p-p A V- -2.5V VOUT R1 10k V- B V+ 140 CHANNEL SEPARATION (dB) R2 100 VOLTAGE NOISE (1V/DIV) 130 120 110 100 90 80 04991-022 1k 10k 100k FREQUENCY (Hz) 1M 10M TIME (1s/DIV) Figure 22. 0.1 Hz to 10 Hz Input Voltage Noise Figure 24. Channel Separation Rev. 0 | Page 9 of 12 04991-024 04991-023 0.0001 20 1 AD8692 VS = +2.7 V or 1.35 V. 1.2k VS = 2.7V VCM = -0.3V TO +1.6V 1.0k OUTPUT VOLTAGE SWING (mV) NUMBER OF AMPLIFIERS 60 VS = 2.7V 50 VDD - VOH @ 1mA 40 800 600 30 VOL @ 1mA 20 400 200 10 -20 0 20 40 60 80 100 120 140 VOS (mV) TEMPERATURE (C) Figure 25. Input Offset Voltage Distribution Figure 28. Output Voltage Swing vs. Temperature 2.0k 1.6k VS = 2.7V TA = 25C INPUT OFFSET VOLTAGE (V) 1.2k 800 400 0 VS = 2.7V CL = 200pF RL = AV = 1 -400 -800 -1.2k -1.6k 0 0.3 0.6 0.9 1.2 1.5 1.6 04991-026 COMMON-MODE VOLTAGE (V) TIME (400ns/DIV) Figure 26. Input Offset Voltage vs. Common-Mode Voltage 10k OUTPUT VOLTAGE TO SUPPLY RAIL (mV) Figure 29. Large Signal Transient Response VS = 2.7V 1k 100 SOURCE SINK 10 1 0.01 0.1 1 10 100 LOAD CURRENT (mA) Figure 27. Output Voltage to Supply Rail vs. Load Current Rev. 0 | Page 10 of 12 04991-027 0.1 0.001 04991-029 -2.0k -0.3 VOLTAGE (500mV/DIV) 04991-028 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 04991-025 0 -2.0 0 -40 AD8692 OUTLINE DIMENSIONS 3.00 BSC 8 5 3.00 BSC 4 4.90 BSC PIN 1 0.65 BSC 0.15 0.00 0.38 0.22 COPLANARITY 0.10 1.10 MAX 8 0 0.80 0.60 0.40 0.23 0.08 SEATING PLANE COMPLIANT TO JEDEC STANDARDS MO-187AA Figure 30. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters 5.00 (0.1968) 4.80 (0.1890) 8 5 4 4.00 (0.1574) 3.80 (0.1497) 1 6.20 (0.2440) 5.80 (0.2284) 1.27 (0.0500) BSC 0.25 (0.0098) 0.10 (0.0040) 1.75 (0.0688) 1.35 (0.0532) 0.50 (0.0196) x 45 0.25 (0.0099) 0.51 (0.0201) COPLANARITY SEATING 0.31 (0.0122) 0.10 PLANE 8 0.25 (0.0098) 0 1.27 (0.0500) 0.40 (0.0157) 0.17 (0.0067) COMPLIANT TO JEDEC STANDARDS MS-012AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN Figure 31. 8-Lead Standard Small Outline Package [SOIC] (R-8) Dimensions shown in millimeters and (inches) ORDERING GUIDE Model AD8692ARMZ-R21 AD8692ARMZ-REEL1 AD8692ARZ1 AD8692ARZ-REEL1 AD8692ARZ-REEL71 Temperature Range -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C Package Description 8-Lead MSOP 8-Lead MSOP 8-Lead SOIC 8-Lead SOIC 8-Lead SOIC Package Option RM-8 RM-8 R-8 R-8 R-8 Branding APA APA 1 Z = Pb-free part. Rev. 0 | Page 11 of 12 AD8692 NOTES (c) 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04991-0-10/04(0) Rev. 0 | Page 12 of 12 |
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