FEATURES PIN CONFIGURATIONS Low offset voltage: 13 µV maximum Input offset drift: 0.03 µV/°C Single-supply operation: 2.7 V to 5.5 V High gain, CMRR, and PSRR Low input bias current: 25 pA Low supply current: 180 µA Qualified for automotive applications OUT 1 V+ 2 +IN 3 TOP VIEW (Not to Scale) 4 –IN 06741-002 V– Figure 1. 5-Lead TSOT-23 (UJ-5) NC APPLICATIONS 1 −IN 2 Mobile communications Portable instrumentation Battery-powered devices Sensor interfaces Temperature measurement Electronic scales AD8538 8 NC 7 V+ V− 6 OUT TOP VIEW 4 (Not to Scale) 5 NC NC = NO CONNECT 06741-001 +IN 3 OUT A 1 –IN A 2 The AD8538/AD8539 are very high precision amplifiers featuring extremely low offset voltage, low input bias current, and low power consumption. The supply current is less than 215 μA maximum per amplifier at 5.0 V. Operation is fully specified from 2.7 V to 5.0 V single supply (±1.35 V to ±2.5 V dual supply). The AD8538/AD8539 operate at very low power making these amplifiers ideal for battery-powered devices and portable equipment. The AD8538/AD8539 are specified over the extended industrial temperature range (−40°C to +125°C). The AD8538 amplifier is available in 5-lead TSOT-23, and 8-lead, narrow body SOIC packages, and the AD8539 amplifier is available in 8-lead, narrow body SOIC and 8-lead MSOP. See the Ordering Guide for the automotive part. AD8539 +IN A 3 TOP VIEW V– 4 (Not to Scale) 8 V+ 7 OUT B 6 –IN B 5 +IN B 06741-033 Figure 2. 8-Lead SOIC_N (R-8) GENERAL DESCRIPTION Rev. B 5 AD8538 Figure 3. 8-Lead SOIC_N (R-8) OUT A 1 –IN A 2 AD8539 +IN A 3 TOP VIEW (Not to Scale) V– 4 8 V+ 7 OUT B 6 –IN B 5 +IN B 06741-034 Data Sheet Low Power, Precision, Auto-Zero Op Amps AD8538/AD8539 Figure 4. 8-Lead MSOP (RM-8) Document Feedback 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 ©2005–2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com AD8538/AD8539 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ............................................................7 Applications ....................................................................................... 1 Thermal Resistance .......................................................................7 General Description ......................................................................... 1 ESD Caution...................................................................................7 Pin Configuration Diagrams ........................................................... 1 Typical Performance Characteristics ..............................................8 Revision History ............................................................................... 2 AD8538 Characteristics................................................................8 Specifications..................................................................................... 3 AD8539 Characteristics............................................................. 14 AD8538 Electrical Specifications ............................................... 3 Outline Dimensions ....................................................................... 20 AD8539 Electrical Specifications ............................................... 5 Ordering Guide .......................................................................... 21 REVISION HISTORY 2/13—Rev. A to Rev. B Changes to Features Section and General Description Section ... 1 Updated Outline Dimensions ....................................................... 20 Changes to Ordering Guide .......................................................... 21 Added Automotive Products Section........................................... 21 5/07—Rev. 0 to Rev. A Added AD8539 ................................................................... Universal Changes to Specifications Section .................................................. 3 Added Table 3, Renumbered Tables Sequentially ........................ 5 Added Table 4, Renumbered Tables Sequentially .........................6 Changes to Thermal Resistance Section ........................................7 Added Figure 32 and Figure 33 .................................................... 13 Added AD8539 Characteristics Section, Renumbered Figures Sequentially ..................................................................................... 14 Updated Outline Dimensions ....................................................... 20 Changes to Ordering Guide .......................................................... 21 10/05—Revision 0: Initial Version Rev. B | Page 2 of 24 Data Sheet AD8538/AD8539 SPECIFICATIONS AD8538 ELECTRICAL SPECIFICATIONS @ VS = 5.0 V, VCM = 2.5 V, VO = 2.5 V, TA = 25°C, unless otherwise specified. Table 1. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol Conditions Min VOS Typ Max Unit 5 13 30 25 100 1.0 50 150 5 µV µV pA pA nA pA pA V dB dB dB dB µV/°C −40°C ≤ TA ≤ +125°C Input Bias Current IB 15 35 0.7 20 −40°C ≤ TA ≤ +85°C −40°C ≤ TA ≤ +125°C Input Offset Current IOS −40°C ≤ TA ≤ +125°C Input Voltage Range Common-Mode Rejection Ratio CMRR Large Signal Voltage Gain AVO Offset Voltage Drift ∆VOS/∆T OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Limit POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time 0.01% Overload Recovery Time Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Voltage Noise Density VOH VOL VCM = 0 V to 5 V −40°C ≤ TA ≤ +125°C, VCM = 0.2 V to 4.8 V RL = 10 kΩ, VO = 0.1 V to 4.9 V −40°C ≤ TA ≤ +125°C −40°C ≤ TA ≤ +125°C 0 115 100 115 110 RL = 100 kΩ to ground −40°C ≤ TA ≤ +125°C, RL = 100 kΩ to ground RL = 10 kΩ to ground −40°C ≤ TA ≤ +125°C, RL = 10 kΩ to ground RL = 100 kΩ to V+ −40°C ≤ TA ≤ +125°C, RL = 100 kΩ to V+ RL = 10 kΩ to V+ −40°C ≤ TA ≤ +125°C, RL = 10 kΩ to V+ 4.99 4.98 4.95 4.94 VS = 2.7 V to 5.0 V −40°C ≤ TA ≤ +125°C IO = 0 −40°C ≤ TA ≤ +125°C 105 100 ISY SR tS RL =10 kΩ G = ±1, 2 V step, CL = 20 pF, RL = 1 kΩ GBP ØM en p-p en 0.1 4.998 4.970 1.9 2.8 17 20 ±25 ISC PSRR 150 135 141 135 0.03 125 125 150 190 5 7 20 30 180 215 V V V V mV mV mV mV mA dB dB µA µA RL = 10 kΩ, RL = 100 kΩ, CL = 20 pF 0.4 10 0.05 430 65 V/µs μs ms kHz Degrees f = 0.1 Hz to 10 Hz f = 1 kHz 2.0 50 µV p-p nV/√Hz Rev. B | Page 3 of 24 AD8538/AD8539 Data Sheet @ VS = 2.7 V, VCM = 1.35 V, VO = 1.35 V, TA = 25°C, unless otherwise specified. Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol Conditions Min VOS Typ Max Unit 5 13 30 25 100 1.0 50 150 2.7 µV µV pA pA nA pA pA V dB dB dB dB µV/°C −40°C ≤ TA ≤ +125°C Input Bias Current IB 15 35 0.7 20 −40°C ≤ TA ≤ +85°C −40°C ≤ TA ≤ +125°C Input Offset Current IOS −40°C ≤ TA ≤ +125°C Input Voltage Range Common-Mode Rejection Ratio CMRR Large Signal Voltage Gain AVO Offset Voltage Drift ∆VOS/∆T OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Limit POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time 0.01% Overload Recovery Time Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Voltage Noise Density VOH VOL VCM = 0 V to 2.5 V −40°C ≤ TA ≤ +125°C RL = 10 kΩ, VO = 0.1 V to 1.7 V −40°C ≤ TA ≤ +125°C −40°C ≤ TA ≤ +125°C 0 110 100 110 105 RL = 100 kΩ to ground −40°C ≤ TA ≤ +125°C, RL = 100 kΩ to ground RL = 10 kΩ to ground −40°C ≤ TA ≤ +125°C, RL = 10 kΩ to ground RL = 100 kΩ to V+ −40°C ≤ TA ≤ +125°C, RL = 100 kΩ to V+ RL = 10 kΩ to V+ −40°C ≤ TA ≤ +125°C, RL = 10 kΩ to V+ 2.68 2.68 2.67 2.66 VS = 2.7 V to 5.5 V −40°C ≤ TA ≤ +125°C IO = 0 −40°C ≤ TA ≤ +125°C 105 100 ISY SR tS RL = 10 kΩ G = ±1, 1 V step, CL = 20 pF, RL = 1 kΩ GBP ØM en p-p en 0.1 2.698 2.68 1.7 2.4 14 20 ±8 ISC PSRR 140 135 140 135 0.03 125 125 150 190 5 5 20 25 180 215 V V V V mV mV mV mV mA dB dB µA µA RL = 10 kΩ, RL = 100 kΩ, CL = 20 pF 0.35 5 0.05 430 65 V/µs μs ms kHz Degrees f = 0.1 Hz to 10 Hz f = 1 kHz 2.0 50 µV p-p nV/√Hz Rev. B | Page 4 of 24 Data Sheet AD8538/AD8539 AD8539 ELECTRICAL SPECIFICATIONS @ VS = 5.0 V, VCM = 2.5 V, VO = 2.5 V, TA = 25°C, unless otherwise specified. Table 3. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol Conditions Min VOS Typ Max Unit 5 15 30 60 125 1.0 70 400 5 4.8 µV µV pA pA nA pA pA V V dB dB dB dB µV/°C −40°C ≤ TA ≤ +125°C Input Bias Current IB 15 35 0.7 20 −40°C ≤ TA ≤ +85°C −40°C ≤ TA ≤ +125°C Input Offset Current IOS −40°C ≤ TA ≤ +125°C Input Voltage Range Common-Mode Rejection Ratio CMRR Large Signal Voltage Gain AVO Offset Voltage Drift ∆VOS/∆T OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Limit POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time 0.01% Overload Recovery Time Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Voltage Noise Density VOH VOL −40°C ≤ TA ≤ +125°C VCM = 0 V to 5 V −40°C ≤ TA ≤ +125°C, VCM = 0.2 V to 4.8 V RL = 10 kΩ, VO = 0.1 V to 4.9 V −40°C ≤ TA ≤ +125°C −40°C ≤ TA ≤ +125°C 0 0.2 115 100 110 110 RL = 100 kΩ to ground −40°C ≤ TA ≤ +125°C, RL = 100 kΩ to ground RL = 10 kΩ to ground −40°C ≤ TA ≤ +125°C, RL = 10 kΩ to ground RL = 100 kΩ to V+ −40°C ≤ TA ≤ +125°C, RL = 100 kΩ to V+ RL = 10 kΩ to V+ −40°C ≤ TA ≤ +125°C, RL = 10 kΩ to V+ 4.99 4.98 4.95 4.94 VS = 2.7 V to 5.0 V −40°C ≤ TA ≤ +125°C IO = 0 −40°C ≤ TA ≤ +125°C 105 100 ISY SR tS RL =10 kΩ G = ±1, 2 V step, CL = 20 pF, RL = 1 kΩ GBP ØM en p-p en 0.1 4.994 4.97 5 6 20 24 ±25 ISC PSRR 135 130 130 125 0.03 125 125 170 7 8 25 30 210 225 V V V V mV mV mV mV mA dB dB µA µA RL = 10 kΩ, RL = 100 kΩ, CL = 20 pF 0.4 10 0.05 430 65 V/µs μs ms kHz Degrees f = 0.1 Hz to 10 Hz f = 1 kHz 1.2 52 µV p-p nV/√Hz Rev. B | Page 5 of 24 AD8538/AD8539 Data Sheet @ VS = 2.7 V, VCM = 1.35 V, VO = 1.35 V, TA = 25°C, unless otherwise specified. Table 4. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol Conditions Min VOS Typ Max Unit 5 16 30 25 125 1.0 50 300 2.7 2.5 µV µV pA pA nA pA pA V −40°C ≤ TA ≤ +125°C Input Bias Current IB 15 35 0.7 20 −40°C ≤ TA ≤ +85°C −40°C ≤ TA ≤ +125°C Input Offset Current IOS −40°C ≤ TA ≤ +125°C Input Voltage Range Common-Mode Rejection Ratio CMRR Large Signal Voltage Gain AVO Offset Voltage Drift ∆VOS/∆T OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Limit POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time 0.01% Overload Recovery Time Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Voltage Noise Density VOH VOL −40°C ≤ TA ≤ +125°C VCM = 0 V to 2.7 V −40°C ≤ TA ≤ +125°C, VCM = 0.2 V to 2.5 V RL = 10 kΩ, VO = 0.1 V to 2.6 V −40°C ≤ TA ≤ +125°C −40°C ≤ TA ≤ +125°C 0 0.2 110 100 110 105 RL = 100 kΩ to ground −40°C ≤ TA ≤ +125°C, RL = 100 kΩ to ground RL = 10 kΩ to ground −40°C ≤ TA ≤ +125°C, RL = 10 kΩ to ground RL = 100 kΩ to V+ −40°C ≤ TA ≤ +125°C, RL = 100 kΩ to V+ RL = 10 kΩ to V+ −40°C ≤ TA ≤ +125°C, RL = 10 kΩ to V+ 2.68 2.68 2.67 2.66 VS = 2.7 V to 5.5 V −40°C ≤ TA ≤ +125°C IO = 0 −40°C ≤ TA ≤ +125°C 105 100 ISY SR tS RL = 10 kΩ G = ±1, 1 V step, CL = 20 pF, RL = ∞ GBP ØM en p-p en 0.1 2.693 2.68 5 6 14 20 ±8 ISC PSRR 130 125 130 125 0.03 7 8 20 25 125 125 210 225 dB dB dB dB µV/°C V V V V mV mV mV mV mA dB dB µA µA RL = 10 kΩ, RL = 100 kΩ, CL = 20 pF 0.35 8 0.05 430 65 V/µs μs ms kHz Degrees f = 0.1 Hz to 10 Hz f = 1 kHz 2.0 55 µV p-p nV/√Hz Rev. B | Page 6 of 24 Data Sheet AD8538/AD8539 ABSOLUTE MAXIMUM RATINGS TA = 25°C, unless otherwise noted. THERMAL RESISTANCE Table 5. Parameter Supply Voltage Input Voltage Differential Input Voltage Output Short-Circuit Duration to GND Storage Temperature Range Lead Temperature (Soldering, 60 sec) Operating Temperature Range Junction Temperature Range Rating +6 V VSS − 0.3 V to VDD + 0.3 V ±6 V Observe derating curve –65°C to +150°C 300°C –40°C to +125°C −65°C to +150°C θJA is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages. Table 6. Thermal Characteristics Package Type 5-Lead TSOT-23 (UJ-5) 8-Lead SOIC_N (R-8) 8-Lead MSOP (RM-8) ESD CAUTION Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; 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. Absolute maximum ratings apply at 25°C, unless otherwise noted. Rev. B | Page 7 of 24 θJA 207 125 145 θJC 61 43 45 Unit °C/W °C/W °C/W AD8538/AD8539 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS AD8538 CHARACTERISTICS AD8538 only, VSY = 5 V or ±2.5 V, unless otherwise noted. 450 700 600 INPUT BIAS CURRENT (pA) 350 300 250 200 150 100 0 –10.0 –8.4 –6.8 –5.2 –3.6 –2.0 –0.4 1.2 2.8 4.4 6.0 7.6 9.2 400 300 200 100 06741-003 50 500 06741-006 400 NUMBER OF AMPLIFIERS VSY = 5V AND 2.7V VSY = 5V 0V < VCM < 5V TA = 25°C 0 25 45 65 INPUT OFFSET VOLTAGE (µV) Figure 5. AD8538 Input Offset Voltage Distribution 160 TA = 25°C 140 SUPPLY CURRENT (µA) 10 8 6 4 0 100 80 60 40 20 06741-004 2 120 0 0.012 0.024 0.036 0.048 0.060 0.072 0.084 0.096 0 1 TCVOS (µV/°C) 2 3 5 4 SUPPLY VOLTAGE (V) Figure 9. AD8538 Supply Current vs. Supply Voltage Figure 6. AD8538 Input Offset Voltage Drift Distribution 10 200 VSY = 5V TA = 25°C 8 6 SUPPLY CURRENT (µA) VSY = 5V 4 2 0 –2 –4 150 VSY = 2.7V 100 50 06741-005 –6 –8 –10 0 1 2 3 4 0 –40 5 INPUT COMMON-MODE VOLTAGE (V) 06741-008 NUMBER OF AMPLIFIERS 12 INPUT OFFSET VOLTAGE (µV) 125 Figure 8. AD8538 Input Bias Current vs. Temperature VSY = 5V –40°C < TA < +125°C 0 105 06741-007 14 85 TEMPERATURE (°C) 10 60 110 TEMPERATURE (°C) Figure 7. AD8538 Input Offset Voltage vs. Input Common-Mode Voltage Rev. B | Page 8 of 24 Figure 10. AD8538 Supply Current vs. Temperature Data Sheet 70 50 OPEN-LOOP GAIN (dB) VSY – VOH 100 VOL 10 SOURCE 1 30 0.01 0.001 45 20 ФM 10 0 0 SINK 0.1 90 40 0.01 0.1 1 VSY = ±2.5V AND ±1.35V RL = 100kΩ CL = 20pF –10 –20 1k 10 10k LOAD CURRENT (mA) 120 VSY = 5V AND 2.7V TA = 25°C 30 100 VSY – VOH 25 CMRR (dB) 80 20 VOL 15 60 40 10 –25 –10 5 20 35 50 65 80 95 110 0 100 125 06741-013 20 5 06741-010 OUTPUT SATURATION VOLTAGE (mV) Figure 14. AD8538 Open-Loop Gain and Phase vs. Frequency VSY = 5V RL = 10kΩ 0 –40 1k Figure 12. AD8538 Output Saturation Voltage vs. Temperature 80 AV = 100 PSRR (dB) +PSRR AV = 10 60 –PSRR 40 AV = 1 20 –20 1k 10k 100k 0 100 1M 06741-014 0 1M VSY = ±2.5V AND ±1.35V TA = 25°C VSY = 5V AND 2.7V CL = 20pF RL = 2kΩ 06741-011 20 100k Figure 15. AD8538 CMRR vs. Frequency 100 60 40 10k FREQUENCY (Hz) TEMPERATURE (°C) CLOSED-LOOP GAIN (dB) –45 1M 100k FREQUENCY (Hz) Figure 11. AD8538 Output Saturation Voltage vs. Load Current 35 OPEN-LOOP PHASE SHIFT (Degrees) 135 60 1000 06741-012 VSY = 5V TA = 25°C 06741-009 OUTPUT SATURATION VOLTAGE (mV) 10000 AD8538/AD8539 1k 10k 100k FREQUENCY (Hz) FREQUENCY (Hz) Figure 16. AD8538 PSRR vs. Frequency Figure 13. AD8538 Closed-Loop Gain vs. Frequency Rev. B | Page 9 of 24 1M AD8538/AD8539 1000 VSY = 5V AV = 1 CL = 300pF RL = 10kΩ VSY = 5V AND 2.7V VOLTAGE (1V/DIV) AV = 100 100 OUTPUT IMPEDANCE (Ω) Data Sheet AV = 10 10 AV = 1 1 06741-022 0.01 100 06741-017 0.1 1k 10k 100k 1M TIME (4µs/DIV) FREQUENCY (Hz) Figure 20. AD8538 Large Signal Transient Response Figure 17. AD8538 Closed-Loop Output Impedance vs. Frequency VSY = 5V TA = 25°C RL = 2kΩ VSY = 5V AV = –50 VIN (mV) 50 100 40 0 30 OS+ 0 OS– 10 0 1 10 100 06741-018 VOUT (V) 20 06741-015 SMALL SIGNAL OVERSHOOT (%) 60 –2.5 1000 TIME (10µs/DIV) LOAD CAPACITANCE (pF) Figure 21. AD8538 Positive Overload Recovery Figure 18. AD8538 Small Signal Overshoot vs. Load Capacitance VSY = 5V AND 2.7V AV = 1 CL = 300pF RL = 2kΩ VSY = 5V AV = –50 VOLTAGE (50mV/DIV) VIN (mV) 0 –100 VOUT (V) 2.5 06741-019 06741-016 0 TIME (10µs/DIV) TIME (4µs/DIV) Figure 22. AD8538 Negative Overload Recovery Figure 19. AD8538 Small Signal Transient Response Rev. B | Page 10 of 24 Data Sheet VSY = 5V TA = 25°C VOLTAGE (1V/DIV) VIN 100 100 1k 10k 06741-023 10 10 VOUT VSY = 5V AV = 1 VIN = 6V p-p RL = 10kΩ 06741-021 VOLTAGE NOISE DENSITY (nV/√Hz) 1000 AD8538/AD8539 TIME (200µs/DIV) FREQUENCY (Hz) Figure 25. AD8538 No Phase Reversal Figure 23. AD8538 Voltage Noise Density 06741-020 VOLTAGE (500nV/DIV) VSY = 5V AND 2.7V TIME (1s/DIV) Figure 24. AD8538 0.1 Hz to 10 Hz Input Voltage Noise Rev. B | Page 11 of 24 AD8538/AD8539 Data Sheet VSY = 2.7 V or ±1.35 V, AD8538 only, unless otherwise noted. 10000 160 OUTPUT SATURATION VOLTAGE (mV) VSY = 2.7V 0V < VCM < 2.7V TA = 25°C 120 100 80 60 40 20 0 –10.0 –8.4 –6.8 –5.2 –3.6 –2.0 –0.4 1.2 2.8 4.4 6.0 7.6 9.2 06741-024 1000 100 10 SOURCE SINK 1 0.1 0.001 0.01 INPUT OFFSET VOLTAGE (µV) Figure 29. AD8538 Output Saturation Voltage vs. Load Current 35 30 NUMBER OF AMPLIFIERS OUTPUT SATURATION VOLTAGE (mV) VSY = 2.7V –40°C < TA < +125°C 25 20 15 10 06741-025 5 0 0 VSY = 2.7V RL = 10kΩ 25 VSY = VOH 20 15 VOL 10 5 0 –40 0.012 0.024 0.036 0.048 0.060 0.072 0.084 0.096 –25 –10 TCVOS (µV/°C) 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) Figure 30. AD8538 Output Saturation Voltage vs. Temperature Figure 27. AD8538 Input Offset Voltage Drift Distribution 80 10 SMALL SIGNAL OVERSHOOT (%) VSY = 2.7V 8 TA = 25°C 6 4 2 0 –2 –4 –6 –8 –10 0 0.5 1.0 1.5 2.0 VSY = 2.7V TA = 25°C 70 RL = 2kΩ 60 50 40 30 20 OS+ 10 06741-026 INPUT OFFSET VOLTAGE (µV) 1 06741-028 Figure 26. AD8538 Input Offset Voltage Distribution 30 0.1 LOAD CURRENT (mA) 06741-029 NUMBER OF AMPLIFIERS 140 VSY = 2.7V TA = 25°C 06741-027 180 OS– 0 1 2.5 10 100 1000 LOAD CAPACITANCE (pF) INPUT COMMON-MODE VOLTAGE (V) Figure 28. AD8538 Input Offset Voltage vs. Input Common-Mode Voltage Rev. B | Page 12 of 24 Figure 31. AD8538 Small Signal Overshoot vs. Load Capacitance Data Sheet AD8538/AD8539 1000 VSY = 2.7V TA = 25°C 100 10 10 TIME (4µs/DIV) 06741-032 06741-030 VOLTAGE (500mV/DIV) VOLTAGE NOISE DENSITY (nV/√Hz) VSY = 2.7V AV = 1 CL = 100pF RL = 10kΩ 100 1k 10k FREQUENCY (Hz) Figure 32. AD8538 Large Signal Transient Response Figure 33. AD8538 Voltage Noise Density Rev. B | Page 13 of 24 100k AD8538/AD8539 Data Sheet AD8539 CHARACTERISTICS AD8539 only, VS = 5 V or ±2.5 V, unless otherwise noted. 800 1000.0 AD8539 VSY = 5V 0 < VCM < 5V TA = 25°C NUMBER OF AMPLIFIERS 600 AD8539 VSY = 5V 100.0 INPUT BIAS CURRENT (pA) 700 500 400 300 200 10.0 1.0 0.1 0.01 06741-035 0 –10 –9 –8 –7 –6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 7 8 9 10 VOS (µV) 5 Figure 34. AD8539 Input Offset Voltage Distribution 45 65 85 TEMPERATURE (°C) 105 125 Figure 37. AD8539 Input Bias Current vs. Temperature 60 400 AD8539 VSY = ±2.5V –40°C < VCM < 125°C 50 AD8539 VSY = 0V TO 5V –40°C < TA < +125°C 350 +125°C 300 +85°C 40 +25°C 250 ISY (µA) NUMBER OF AMPLIFIERS 25 06741-038 100 30 –40°C 200 150 20 100 10 0 0.016 0.032 0.048 0.064 TCVOS (µV) 0.080 0 06741-036 0 0.096 0 Figure 35. AD8539 Input Offset Voltage Drift Distribution 0.5 1.0 1.5 2.0 2.5 VSY (V) 3.0 3.5 4.0 4.5 5.0 06741-039 50 Figure 38. AD8539 Supply Current vs. Supply Voltage 20 400 AD8539 VSY = 5V 0V < VCM < 5V TA = 25°C 10 AD8539 375 350 ISY (µA) VOS (µV) 325 0 VSY = ±2.5V 300 275 VSY = ±1.35V –10 250 0 1 2 3 VCM (V) 4 5 200 –40 Figure 36. AD8539 Input Offset Voltage vs. Input Common-Mode Voltage Rev. B | Page 14 of 24 –25 –10 5 20 35 50 65 TEMPERATURE (°C) 80 95 110 Figure 39. AD8539 Supply Current vs. Temperature 125 06741-040 –20 06741-037 225 SOURCE, VS = ± 2.5V 1000 100 GAIN (Degrees) SINK, VS = ± 1.35V SOURCE, VS = ± 1.35V SINK, VS = ± 2.5V 10 120 120 100 100 80 80 60 60 40 40 20 20 0 0 –20 –20 –40 –40 –60 1 –100 0.1 0.001 0.01 0.1 1 ILOAD (mA) 10 100 –120 1k Figure 40. AD8539 Output Saturation Voltage vs. Load Current 30 –100 10k 100k FREQUENCY (Hz) –120 10M 1M 140 AD8539 VS = 5V AD8539 VSY = ±2.5V CHANNEL B 120 VDD - VOH, IL = 250µA, RL = 10kΩ 100 25 CMRR (dB) CHANNEL A 20 VOL, IL = 250µA, RL = 10kΩ 15 10 80 60 40 VDD - VOH, IL = 25µA, RL = 100kΩ 5 –25 –10 5 20 35 50 65 TEMPERATURE (°C) 80 95 110 125 0 100 1k 10k 100k FREQUENCY (Hz) 60 120 AD8539 VSY = ±2.5V RL = 2kΩ CL = 20pF 40 10M Figure 44. AD8539 CMRR vs. Frequency Figure 41. AD8539 Output Saturation Voltage vs. Temperature AV = 100 1M 06741-045 20 VOL, IL = 25µA, RL = 100kΩ 0 –40 AD8539 VSY = ±2.5V 100 PSRR– 80 AV = 10 PSRR (dB) 20 AV = 1 0 PSRR+ 60 40 20 –20 –40 100 1k 10k 100k FREQUENCY (Hz) 1M 10M –20 100 1k 10k 100k FREQUENCY (Hz) 1M Figure 45. AD8539 PSRR vs. Frequency Figure 42. AD8539 Closed-Loop Gain vs. Frequency Rev. B | Page 15 of 24 10M 06741-046 0 06741-043 CLOSED-LOOP GAIN (dB) –80 Figure 43. AD8539 Open-Loop Gain and Phase vs. Frequency 06741-042 OUTPUT SATURATION VOLTAGE (mV) 35 –60 AD8539 VSY = ±2.5V RL = 2kΩ CL = 20pF –80 06741-044 AD8539 06741-041 OUTPUT SATURATION VOLTAGE (mV) 10000 AD8538/AD8539 PHASE (Degrees) Data Sheet AD8538/AD8539 Data Sheet 1000 AD8539 VSY = 5V AV = 1 CL = 300pF RL = 10kΩ AD8539 VSY = ±2.5V 900 800 VOLTAGE (1V/DIV) 700 ZOUT (Ω) 600 500 400 300 AV = 10 AV = 1 1k 10k 100k FREQUENCY (Hz) 1M 10M TIME (4µs/DIV) Figure 46. AD8539 Closed-Loop Output Impedance vs. Frequency Figure 49. AD8539 Large Signal Transient Response 60 0.15 AD8539 VSY = ±2.5V RL = 2kΩ 5 AD8539 VSY = ±2.5V AV = –50 0.10 INPUT VOLTAGE (50mV/DIV) 50 40 30 OS+ 20 OS– 0.05 3 INPUT VOLTAGE 0 2 –0.05 1 –0.10 0 –0.15 –1 OUTPUT VOLTAGE 10 1 10 100 CAPACITANCE (pF) 1k –0.25 –3 TIME (20µs/DIV) Figure 50. AD8539 Positive Overload Recovery Figure 47. AD8539 Small Signal Overshoot vs. Load Capacitance INPUT VOLTAGE (50mV/DIV) AD8539 VSY = 5V AV = 1 CL = 300pF RL = 2kΩ –2 06741-051 0 06741-048 –0.20 0.05 7.5 0 6.5 –0.05 INPUT VOLTAGE AD8539 VSY = ±2.5V AV = –50 –0.10 5.5 4.5 –0.15 3.5 –0.20 2.5 –0.25 1.5 OUTPUT VOLTAGE –0.30 0.5 –0.35 –0.5 TIME (20µs/DIV) Figure 48. AD8539 Small Signal Transient Response Figure 51. AD8539 Negative Overload Recovery Rev. B | Page 16 of 24 06741-052 TIME (2µs/DIV) 06741-049 VOLTAGE (50mV/DIV) 4 OUTPUT VOLTAGE (5V/DIV) OVERSHOOT (%) 06741-050 0.01 100 06741-047 100 OUTPUT VOLTAGE (1V/DIV) AV = 100 200 Data Sheet AD8538/AD8539 1k AD8539 VSY = ±2.5V AV = 1 RL = 10kΩ VOLTAGE (2V/DIV) INPUT VOLTAGE 10 100 1k 10k FREQUENCY (Hz) 100k OUTPUT VOLTAGE TIME (200µs/DIV) Figure 52. AD8539 Voltage Noise Density Figure 54. AD8539 No Phase Reversal 0.8 0 AD8539 VSY = 5V AV = 1M AD8539 VSY = ±2.5V –20 CHANNEL SEPARATION (dB) 0.6 0.4 0.2 0 –0.2 –0.4 –40 –60 –80 –100 –120 –0.8 –5 –4 –3 –2 –1 0 1 TIME (1s/DIV) 2 3 4 5 –160 100 1k 10k FREQUENCY (Hz) Figure 55. AD8539 Channel Separation vs. Frequency Figure 53. AD8539 0.1 Hz to 10 Hz Input Voltage Noise Rev. B | Page 17 of 24 100k 06741-056 –140 –0.6 06741-054 VOLTAGE (200mV/DIV) 06741-055 100 06741-053 VOLTAGE NOISE DENSITY (nV Hz) AD8539 VSY = ±2.5V AD8538/AD8539 Data Sheet VS = 2.7 V or ±1.35 V, TA = 25°C, AD8539 only, unless otherwise noted. OUTPUT SATURATION VOLTAGE (mV) 300 250 200 150 100 50 25 VDD – VOH, RL = 10kΩ 20 VOL, RL = 10kΩ 15 10 VDD – VOH, RL = 100kΩ 5 VOL, RL = 100kΩ 0 –40 –25 –10 5 20 35 50 65 80 TEMPERATURE (°C) 45 110 125 80 AD8539 VSY = ±1.35V –40°C < TA < +125°C 40 AD8539 VSY = ±1.35V RL = 2kΩ 70 35 60 OVERSHOOT (%) 30 25 20 15 50 40 OS+ 30 20 10 OS– 10 5 0 0.016 0.032 0.048 0.064 TCVOS (µV) 0.080 0 06741-058 0 0.096 Figure 57. AD8539 Input Offset Voltage Drift Distribution 1 10 100 CAPACITANCE (pF) 10 AD8539 VSY = ±1.35V AV = 1 CL = 300pF RL = 10kΩ VOLTAGE (500mV/DIV) AD8539 VSY = 2.7V 0V < VCM < 2.7V TA = 25°C 15 1k Figure 60. AD8539 Small Signal Overshoot vs. Load Capacitance 20 5 VOS (µV) 95 Figure 59. AD8539 Output Saturation Voltage vs. Temperature Figure 56. AD8539 Input Offset Voltage Distribution NUMBER OF AMPLIFIERS 30 06741-057 0 –10 –9 –8 –7 –6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 7 8 9 10 VOS AD8539 VSY = 2.7V 0 –5 –10 0.3 0.6 0.9 1.2 1.5 VCM (V) 1.8 2.1 2.4 2.7 TIME (4µs/DIV) Figure 58. AD8539 Input Offset Voltage vs. Input Common-Mode Voltage Rev. B | Page 18 of 24 Figure 61. AD8539 Large Signal Transient Response 06741-062 0 06741-059 –15 –20 06741-061 NUMBER OF AMPLIFIERS 35 AD8539 VSY = 2.7V 0V < VCM < 2.7V TA = 25°C 06741-060 350 Data Sheet AD8538/AD8539 1k 0 AD8539 VSY = ±1.35V CHANNEL SEPARATION (dB) –20 100 –40 –60 –80 –100 –120 10 100 1k 10k FREQUENCY (Hz) 100k –160 100 Figure 62. AD8539 Voltage Noise Density 1k 10k FREQUENCY (Hz) Figure 63. AD8539 Channel Separation vs. Frequency Rev. B | Page 19 of 24 100k 06741-064 –140 06741-063 VOLTAGE NOISE DENSITY (nV/ Hz) AD8539 VSY = ±1.35V AD8538/AD8539 Data Sheet OUTLINE DIMENSIONS 2.90 BSC 5 4 2.80 BSC 1.60 BSC 1 2 3 0.95 BSC 1.90 BSC *1.00 MAX 0.10 MAX 0.50 0.30 0.20 0.08 8° 4° 0° SEATING PLANE 0.60 0.45 0.30 100708-A *0.90 MAX 0.70 MIN *COMPLIANT TO JEDEC STANDARDS MO-193-AB WITH THE EXCEPTION OF PACKAGE HEIGHT AND THICKNESS. Figure 64. 5-Lead Thin Small Outline Transistor Package [TSOT-23] (UJ-5) Dimensions shown in millimeters 5.00 (0.1968) 4.80 (0.1890) 1 5 4 1.27 (0.0500) BSC 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 0.10 SEATING PLANE 6.20 (0.2441) 5.80 (0.2284) 1.75 (0.0688) 1.35 (0.0532) 0.51 (0.0201) 0.31 (0.0122) 0.50 (0.0196) 0.25 (0.0099) 45° 8° 0° 0.25 (0.0098) 0.17 (0.0067) 1.27 (0.0500) 0.40 (0.0157) COMPLIANT TO JEDEC STANDARDS MS-012-AA 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 65. 8-Lead Standard Small Outline Package [SOIC_N] Narrow Body (R-8) Dimensions shown in millimeters and (inches) Rev. B | Page 20 of 24 012407-A 8 4.00 (0.1574) 3.80 (0.1497) Data Sheet AD8538/AD8539 3.20 3.00 2.80 8 3.20 3.00 2.80 1 5.15 4.90 4.65 5 4 PIN 1 IDENTIFIER 0.65 BSC 0.95 0.85 0.75 15° MAX 1.10 MAX 0.40 0.25 6° 0° 0.23 0.09 COMPLIANT TO JEDEC STANDARDS MO-187-AA 0.80 0.55 0.40 10-07-2009-B 0.15 0.05 COPLANARITY 0.10 Figure 66. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters ORDERING GUIDE Model1, 2 AD8538AUJZ-R2 AD8538AUJZ-REEL AD8538AUJZ-REEL7 AD8538WAUJZ-R7 AD8538ARZ AD8538ARZ-REEL AD8538ARZ-REEL7 AD8539ARMZ AD8539ARMZ-REEL AD8539ARZ AD8539ARZ-REEL AD8539ARZ-REEL7 1 2 Temperature Range −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C Package Description 5-Lead TSOT-23 5-Lead TSOT-23 5-Lead TSOT-23 5-Lead TSOT-23 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead MSOP 8-Lead MSOP 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N Package Option UJ-5 UJ-5 UJ-5 UJ-5 R-8 R-8 R-8 RM-8 RM-8 R-8 R-8 R-8 Branding A0C A0C A0C AOC A1S A1S Z = RoHS Compliant Part. W = Qualified for Automotive Applications. AUTOMOTIVE PRODUCTS The AD8538W model is available with controlled manufacturing to support the quality and reliability requirements of automotive applications. Note that this automotive model may have specifications that differ from the commercial models; therefore, designers should review the Specifications section of this data sheet carefully. Only the automotive grade products shown are available for use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for these models. Rev. B | Page 21 of 24 AD8538/AD8539 Data Sheet NOTES Rev. B | Page 22 of 24 Data Sheet AD8538/AD8539 NOTES Rev. B | Page 23 of 24 AD8538/AD8539 Data Sheet NOTES ©2005–2013 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06741-0-2/13(B) Rev. B | Page 24 of 24