Low Power, Precision, Auto-Zero Op Amps Data Sheet AD8538/AD8539 FEATURES PIN CONFIGURATIONS Low offset voltage: 13 µV maximum Input offset drift: 0.03 µV/°C OUT 1 5 V+ AD8538 Single-supply operation: 2.7 V to 5.5 V V– 2 TOP VIEW HLoigwh i ngpaiunt, bCiMasR cRu, rarnednt P: S2R5R p A +IN 3 (Not to Scale) 4 –IN06741-002 Low supply current: 180 µA Figure 1. 5-Lead TSOT-23 (UJ-5) Qualified for automotive applications APPLICATIONS NC 1 8 NC −IN 2 AD8538 7 V+ Mobile communications +IN 3 TOP VIEW 6 OUT PBoatrttearbyl-ep ionwsterruemde dnetvaitcieosn V− N4C (=N oNtO to C SOcNaNleE)CT5 NC 06741-001 Sensor interfaces Figure 2. 8-Lead SOIC_N (R-8) Temperature measurement Electronic scales OUT A 1 8 V+ GENERAL DESCRIPTION –IN A 2 AD8539 7 OUT B Texhtere AmDel8y5 l3o8w/A oDffs8e5t3 v9o altraeg vee, rlyo wh iignhp uprt ebciiassio cnu rarmenptl,i fainerds lfoewat uproiwnge r +INV A– 34 (NToOt Pto V SIEcWale) 65 –+IINN BB 06741-033 Figure 3. 8-Lead SOIC_N (R-8) 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). OUT A 1 8 V+ AD8539 The AD8538/AD8539 operate at very low power making these –IN A 2 7 OUT B eaqmupiplimfieerns ti.d eal for battery-powered devices and portable +INV A– 34 (NToOt Pto V SIEcWale) 65 –+IINN BB 06741-034 Figure 4. 8-Lead MSOP (RM-8) 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. Rev. B 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. 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. Tel: 781.329.4700 ©2005–2013 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 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 Added Table 4, Renumbered Tables Sequentially ......................... 6 Changes to Thermal Resistance Section ........................................ 7 Changes to Features Section and General Description Section ... 1 Added Figure 32 and Figure 33 .................................................... 13 Updated Outline Dimensions ....................................................... 20 Added AD8539 Characteristics Section, Renumbered Figures Changes to Ordering Guide .......................................................... 21 Sequentially ..................................................................................... 14 Added Automotive Products Section........................................... 21 Updated Outline Dimensions ....................................................... 20 5/07—Rev. 0 to Rev. A Changes to Ordering Guide .......................................................... 21 Added AD8539 ................................................................... Universal 10/05—Revision 0: Initial Version Changes to Specifications Section .................................................. 3 Added Table 3, Renumbered Tables Sequentially ........................ 5 Rev. B | Page 2 of 24

Data Sheet AD8538/AD8539 SPECIFICATIONS AD8538 ELECTRICAL SPECIFICATIONS @ V = 5.0 V, V = 2.5 V, V = 2.5 V, T = 25°C, unless otherwise specified. S CM O A Table 1. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage V 5 13 µV OS −40°C ≤ T ≤ +125°C 30 µV A Input Bias Current I 15 25 pA B −40°C ≤ T ≤ +85°C 35 100 pA A −40°C ≤ T ≤ +125°C 0.7 1.0 nA A Input Offset Current I 20 50 pA OS −40°C ≤ T ≤ +125°C 150 pA A Input Voltage Range 0 5 V Common-Mode Rejection Ratio CMRR V = 0 V to 5 V 115 150 dB CM −40°C ≤ T ≤ +125°C, V = 0.2 V to 4.8 V 100 135 dB A CM Large Signal Voltage Gain A R = 10 kΩ, V = 0.1 V to 4.9 V 115 141 dB VO L O −40°C ≤ T ≤ +125°C 110 135 dB A Offset Voltage Drift ∆VOS/∆T −40°C ≤ TA ≤ +125°C 0.03 0.1 µV/°C OUTPUT CHARACTERISTICS Output Voltage High V R = 100 kΩ to ground 4.99 4.998 V OH L −40°C ≤ T ≤ +125°C, R = 100 kΩ to ground 4.98 V A L R = 10 kΩ to ground 4.95 4.970 V L −40°C ≤ T ≤ +125°C, R = 10 kΩ to ground 4.94 V A L Output Voltage Low V R = 100 kΩ to V+ 1.9 5 mV OL L −40°C ≤ T ≤ +125°C, R = 100 kΩ to V+ 2.8 7 mV A L R = 10 kΩ to V+ 17 20 mV L −40°C ≤ T ≤ +125°C, R = 10 kΩ to V+ 20 30 mV A L Short-Circuit Limit I ±25 mA SC POWER SUPPLY Power Supply Rejection Ratio PSRR V = 2.7 V to 5.0 V 105 125 dB S −40°C ≤ T ≤ +125°C 100 125 dB A Supply Current/Amplifier I I = 0 150 180 µA SY O −40°C ≤ T ≤ +125°C 190 215 µA A DYNAMIC PERFORMANCE Slew Rate SR R =10 kΩ 0.4 V/µs L Settling Time 0.01% t G = ±1, 2 V step, C = 20 pF, R = 1 kΩ 10 μs S L L Overload Recovery Time 0.05 ms Gain Bandwidth Product GBP 430 kHz Phase Margin Ø R = 10 kΩ, R = 100 kΩ, C = 20 pF 65 Degrees M L L L NOISE PERFORMANCE Voltage Noise e f = 0.1 Hz to 10 Hz 2.0 µV p-p n p-p Voltage Noise Density en f = 1 kHz 50 nV/√Hz Rev. B | Page 3 of 24

AD8538/AD8539 Data Sheet @ V = 2.7 V, V = 1.35 V, V = 1.35 V, T = 25°C, unless otherwise specified. S CM O A Table 2. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage V 5 13 µV OS −40°C ≤ T ≤ +125°C 30 µV A Input Bias Current I 15 25 pA B −40°C ≤ T ≤ +85°C 35 100 pA A −40°C ≤ T ≤ +125°C 0.7 1.0 nA A Input Offset Current I 20 50 pA OS −40°C ≤ T ≤ +125°C 150 pA A Input Voltage Range 0 2.7 V Common-Mode Rejection Ratio CMRR V = 0 V to 2.5 V 110 140 dB CM −40°C ≤ T ≤ +125°C 100 135 dB A Large Signal Voltage Gain A R = 10 kΩ, V = 0.1 V to 1.7 V 110 140 dB VO L O −40°C ≤ T ≤ +125°C 105 135 dB A Offset Voltage Drift ∆VOS/∆T −40°C ≤ TA ≤ +125°C 0.03 0.1 µV/°C OUTPUT CHARACTERISTICS Output Voltage High V R = 100 kΩ to ground 2.68 2.698 V OH L −40°C ≤ T ≤ +125°C, R = 100 kΩ to ground 2.68 V A L R = 10 kΩ to ground 2.67 2.68 V L −40°C ≤ T ≤ +125°C, R = 10 kΩ to ground 2.66 V A L Output Voltage Low V R = 100 kΩ to V+ 1.7 5 mV OL L −40°C ≤ T ≤ +125°C, R = 100 kΩ to V+ 2.4 5 mV A L R = 10 kΩ to V+ 14 20 mV L −40°C ≤ T ≤ +125°C, R = 10 kΩ to V+ 20 25 mV A L Short-Circuit Limit I ±8 mA SC POWER SUPPLY Power Supply Rejection Ratio PSRR V = 2.7 V to 5.5 V 105 125 dB S −40°C ≤ T ≤ +125°C 100 125 dB A Supply Current/Amplifier I I = 0 150 180 µA SY O −40°C ≤ T ≤ +125°C 190 215 µA A DYNAMIC PERFORMANCE Slew Rate SR R = 10 kΩ 0.35 V/µs L Settling Time 0.01% t G = ±1, 1 V step, C = 20 pF, R = 1 kΩ 5 μs S L L Overload Recovery Time 0.05 ms Gain Bandwidth Product GBP 430 kHz Phase Margin Ø R = 10 kΩ, R = 100 kΩ, C = 20 pF 65 Degrees M L L L NOISE PERFORMANCE Voltage Noise e f = 0.1 Hz to 10 Hz 2.0 µV p-p n p-p Voltage Noise Density en f = 1 kHz 50 nV/√Hz Rev. B | Page 4 of 24

Data Sheet AD8538/AD8539 AD8539 ELECTRICAL SPECIFICATIONS @ V = 5.0 V, V = 2.5 V, V = 2.5 V, T = 25°C, unless otherwise specified. S CM O A Table 3. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage V 5 15 µV OS −40°C ≤ T ≤ +125°C 30 µV A Input Bias Current I 15 60 pA B −40°C ≤ T ≤ +85°C 35 125 pA A −40°C ≤ T ≤ +125°C 0.7 1.0 nA A Input Offset Current I 20 70 pA OS −40°C ≤ T ≤ +125°C 400 pA A Input Voltage Range 0 5 V −40°C ≤ T ≤ +125°C 0.2 4.8 V A Common-Mode Rejection Ratio CMRR V = 0 V to 5 V 115 135 dB CM −40°C ≤ T ≤ +125°C, V = 0.2 V to 4.8 V 100 130 dB A CM Large Signal Voltage Gain A R = 10 kΩ, V = 0.1 V to 4.9 V 110 130 dB VO L O −40°C ≤ T ≤ +125°C 110 125 dB A Offset Voltage Drift ∆VOS/∆T −40°C ≤ TA ≤ +125°C 0.03 0.1 µV/°C OUTPUT CHARACTERISTICS Output Voltage High V R = 100 kΩ to ground 4.99 4.994 V OH L −40°C ≤ T ≤ +125°C, R = 100 kΩ to ground 4.98 V A L R = 10 kΩ to ground 4.95 4.97 V L −40°C ≤ T ≤ +125°C, R = 10 kΩ to ground 4.94 V A L Output Voltage Low V R = 100 kΩ to V+ 5 7 mV OL L −40°C ≤ T ≤ +125°C, R = 100 kΩ to V+ 6 8 mV A L R = 10 kΩ to V+ 20 25 mV L −40°C ≤ T ≤ +125°C, R = 10 kΩ to V+ 24 30 mV A L Short-Circuit Limit I ±25 mA SC POWER SUPPLY Power Supply Rejection Ratio PSRR V = 2.7 V to 5.0 V 105 125 dB S −40°C ≤ T ≤ +125°C 100 125 dB A Supply Current/Amplifier I I = 0 170 210 µA SY O −40°C ≤ T ≤ +125°C 225 µA A DYNAMIC PERFORMANCE Slew Rate SR R =10 kΩ 0.4 V/µs L Settling Time 0.01% t G = ±1, 2 V step, C = 20 pF, R = 1 kΩ 10 μs S L L Overload Recovery Time 0.05 ms Gain Bandwidth Product GBP 430 kHz Phase Margin Ø R = 10 kΩ, R = 100 kΩ, C = 20 pF 65 Degrees M L L L NOISE PERFORMANCE Voltage Noise e f = 0.1 Hz to 10 Hz 1.2 µV p-p n p-p Voltage Noise Density en f = 1 kHz 52 nV/√Hz Rev. B | Page 5 of 24

AD8538/AD8539 Data Sheet @ V = 2.7 V, V = 1.35 V, V = 1.35 V, T = 25°C, unless otherwise specified. S CM O A Table 4. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage V 5 16 µV OS −40°C ≤ T ≤ +125°C 30 µV A Input Bias Current I 15 25 pA B −40°C ≤ T ≤ +85°C 35 125 pA A −40°C ≤ T ≤ +125°C 0.7 1.0 nA A Input Offset Current I 20 50 pA OS −40°C ≤ T ≤ +125°C 300 pA A Input Voltage Range 0 2.7 V −40°C ≤ T ≤ +125°C 0.2 2.5 A Common-Mode Rejection Ratio CMRR V = 0 V to 2.7 V 110 130 dB CM −40°C ≤ T ≤ +125°C, V = 0.2 V to 2.5 V 100 125 dB A CM Large Signal Voltage Gain A R = 10 kΩ, V = 0.1 V to 2.6 V 110 130 dB VO L O −40°C ≤ T ≤ +125°C 105 125 dB A Offset Voltage Drift ∆VOS/∆T −40°C ≤ TA ≤ +125°C 0.03 0.1 µV/°C OUTPUT CHARACTERISTICS Output Voltage High V R = 100 kΩ to ground 2.68 2.693 V OH L −40°C ≤ T ≤ +125°C, R = 100 kΩ to ground 2.68 V A L R = 10 kΩ to ground 2.67 2.68 V L −40°C ≤ T ≤ +125°C, R = 10 kΩ to ground 2.66 V A L Output Voltage Low V R = 100 kΩ to V+ 5 7 mV OL L −40°C ≤ T ≤ +125°C, R = 100 kΩ to V+ 6 8 mV A L R = 10 kΩ to V+ 14 20 mV L −40°C ≤ T ≤ +125°C, R = 10 kΩ to V+ 20 25 mV A L Short-Circuit Limit I ±8 mA SC POWER SUPPLY Power Supply Rejection Ratio PSRR V = 2.7 V to 5.5 V 105 125 dB S −40°C ≤ T ≤ +125°C 100 125 dB A Supply Current/Amplifier I I = 0 210 µA SY O −40°C ≤ T ≤ +125°C 225 µA A DYNAMIC PERFORMANCE Slew Rate SR R = 10 kΩ 0.35 V/µs L Settling Time 0.01% t G = ±1, 1 V step, C = 20 pF, R = ∞ 8 μs S L L Overload Recovery Time 0.05 ms Gain Bandwidth Product GBP 430 kHz Phase Margin Ø R = 10 kΩ, R = 100 kΩ, C = 20 pF 65 Degrees M L L L NOISE PERFORMANCE Voltage Noise e f = 0.1 Hz to 10 Hz 2.0 µV p-p n p-p Voltage Noise Density en f = 1 kHz 55 nV/√Hz Rev. B | Page 6 of 24

Data Sheet AD8538/AD8539 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. THERMAL RESISTANCE A Table 5. θ is specified for the worst-case conditions, that is, a device JA Parameter Rating soldered in a circuit board for surface-mount packages. Supply Voltage +6 V Table 6. Thermal Characteristics Input Voltage V − 0.3 V to V + 0.3 V SS DD Package Type θ θ Unit Differential Input Voltage ±6 V JA JC 5-Lead TSOT-23 (UJ-5) 207 61 °C/W Output Short-Circuit Duration to GND Observe derating curve 8-Lead SOIC_N (R-8) 125 43 °C/W Storage Temperature Range –65°C to +150°C 8-Lead MSOP (RM-8) 145 45 °C/W Lead Temperature (Soldering, 60 sec) 300°C Operating Temperature Range –40°C to +125°C Junction Temperature Range −65°C to +150°C 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

AD8538/AD8539 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS AD8538 CHARACTERISTICS AD8538 only, V = 5 V or ±2.5 V, unless otherwise noted. SY 450 700 VSY = 5V VSY = 5VAND 2.7V 400 0V < VCM < 5V TA = 25°C 600 S 350 A) R p 500 LIFIE 300 ENT ( MP 250 RR 400 A U ER OF 200 BIAS C 300 MB 150 UT U P 200 N N 100 I 100 500 06741-003 0 06741-006 –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 25 45 65 85 105 125 INPUT OFFSET VOLTAGE (µV) TEMPERATURE (°C) Figure 5. AD8538 Input Offset Voltage Distribution Figure 8. AD8538 Input Bias Current vs. Temperature 14 160 V–4S0Y° C= 5<V TA < +125°C TA = 25°C 12 140 S 120 F AMPLIFIER 108 URRENT (µA) 10800 O C R 6 Y BE PL 60 NUM 4 SUP 40 2 0 06741-004 200 06741-007 0 0.012 0.024 0.036 0.048 0.060 0.072 0.084 0.096 0 1 2 3 4 5 TCVOS (µV/°C) SUPPLY VOLTAGE (V) Figure 6. AD8538 Input Offset Voltage Drift Distribution Figure 9. AD8538 Supply Current vs. Supply Voltage 10 200 VSY = 5V 8 TA = 25°C V) 6 VSY = 5V E (µ 4 A) 150 G µ UT OFFSET VOLTA ––4202 SUPPLY CURRENT ( 100 VSY = 2.7V NP 50 I –6 –1–08 06741-005 0 06741-008 0 1 2 3 4 5 –40 10 60 110 INPUT COMMON-MODE VOLTAGE (V) TEMPERATURE (°C) Figure 7. AD8538 Input Offset Voltage vs. Input Common-Mode Voltage Figure 10. AD8538 Supply Current vs. Temperature Rev. B | Page 8 of 24

Data Sheet AD8538/AD8539 10000 70 VSY= 5V mV)1000 TA= 25°C 60 135 es) E ( 50 gre AG VSY– VOH B) De OLT 100 N (d 40 90 FT ( T SATURATION V 101 SOURCE VOL OPEN-LOOP GAI 132000 ФM 45 LOOP PHASE SHI OUTPU0.00.011.001 0.01 SLIONKAD CUR0.R1ENT (mA) 1 1006741-009 ––210001kVRCSLLY == = 12 00±0p2k.F5ΩVAND ±110.3k5FVREQUENCY (Hz)100k 1M–045 OPEN-06741-012 Figure 11. AD8538 Output Saturation Voltage vs. Load Current Figure 14. AD8538 Open-Loop Gain and Phase vs. Frequency 35 120 VSY= 5V VSY = 5VAND 2.7V RL= 10kΩ TA = 25°C mV) 30 100 E ( VSY– VOH G A 25 T 80 L VO B) TION 20 VOL RR (d 60 A M R 15 C U AT 40 S T 10 U P UT 20 O 05 06741-010 0 06741-013 –40 –25 –10 5 20 35 50 65 80 95 110 125 100 1k 10k 100k 1M TEMPERATURE (°C) FREQUENCY (Hz) Figure 12. AD8538 Output Saturation Voltage vs. Temperature Figure 15. AD8538 CMRR vs. Frequency 60 100 VSY = 5VAND 2.7V VSY =±2.5VAND±1.35V CL = 20pF TA = 25°C RL = 2kΩ AV = 100 80 dB) 40 +PSRR N ( GAI B) 60 OP 20 AV = 10 R (d LO SR –PSRR D- P 40 E S O CL 0 AV = 1 20 –20 106741-01 0 06741-014 1k 10k 100k 1M 100 1k 10k 100k 1M FREQUENCY (Hz) FREQUENCY (Hz) Figure 13. AD8538 Closed-Loop Gain vs. Frequency Figure 16. AD8538 PSRR vs. Frequency Rev. B | Page 9 of 24

AD8538/AD8539 Data Sheet 1000 VSY = 5VAND 2.7V VSY = 5V AV = 1 CL = 300pF 100 AV= 100 RL = 10kΩ Ω) EDANCE ( 10 AV= 10 E (1V/DIV) P G M A UT I 1 AV= 1 OLT P V T U O 0.1 0.01 06741-022 06741-017 100 1k 10k 100k 1M TIME (4µs/DIV) FREQUENCY (Hz) Figure 17. AD8538 Closed-Loop Output Impedance vs. Frequency Figure 20. AD8538 Large Signal Transient Response 60 VTASY = = 2 55°VC 100 AVSVY = =– 55V0 %) 50 RL = 2kΩ mV) T ( (N OO VI SH 40 0 R E V AL O 30 OS+ GN 0 SI 20 SMALL 10 OS– V (V)OUT 0 06741-015 –2.5 06741-018 1 10 100 1000 TIME (10µs/DIV) LOAD CAPACITANCE (pF) Figure 18. AD8538 Small Signal Overshoot vs. Load Capacitance Figure 21. AD8538 Positive Overload Recovery VSY = 5VAND 2.7V VSY = 5V AV = 1 0 AV =–50 CRLL == 320k0ΩpF mV) (N V) VI V/DI –100 m 0 5 E ( G 2.5 A VOLT (V)UT O V 06741-016 0 06741-019 TIME (4µs/DIV) TIME (10µs/DIV) Figure 19. AD8538 Small Signal Transient Response Figure 22. AD8538 Negative Overload Recovery Rev. B | Page 10 of 24

Data Sheet AD8538/AD8539 1000 VSY = 5V TA = 25°C VIN Hz) √ V/ n TY ( DIV) VOUT SI V/ N 1 DE E ( NOISE 100 OLTAG E V G A VOLT VASVY = = 1 5V 10 06741-021 VRILN == 160Vk Ωp-p 06741-023 10 100 1k 10k TIME (200µs/DIV) FREQUENCY (Hz) Figure 23. AD8538 Voltage Noise Density Figure 25. AD8538 No Phase Reversal VSY = 5VAND 2.7V V) DI V/ n 0 0 5 E ( G A T L O V 06741-020 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 V = 2.7 V or ±1.35 V, AD8538 only, unless otherwise noted. SY 180 10000 VSY = 2.7V VSY = 2.7V 160 0TVA <= V25C°MC < 2.7V mV) TA = 25°C 140 E (1000 S G R A MPLIFIE 110200 N VOLT 100 A O F TI O 80 A NUMBER 4600 TPUT SATUR 101 SOURCE SINK U 200 06741-024 O 0.1 06741-027 –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 0.001 0.01 0.1 1 INPUT OFFSET VOLTAGE (µV) LOAD CURRENT (mA) Figure 26. AD8538 Input Offset Voltage Distribution Figure 29. AD8538 Output Saturation Voltage vs. Load Current 35 30 30 V–4S0Y° C= 2<. 7TVA < +125°C mV) 25 VRSLY = = 1 02k.7ΩV E ( RS 25 AG VSY = VOH MPLIFIE 20 N VOLT 20 A O F TI 15 MBER O 15 SATURA 10 VOL NU 10 UT P T 05 06741-025 OU 05 06741-028 0 0.012 0.024 0.036 0.048 0.060 0.072 0.084 0.096 –40 –25 –10 5 20 35 50 65 80 95 110 125 TCVOS (µV/°C) TEMPERATURE (°C) Figure 27. AD8538 Input Offset Voltage Drift Distribution Figure 30. AD8538 Output Saturation Voltage vs. Temperature 10 80 VSY = 2.7V VSY = 2.7V 8 TA = 25°C 70 TRAL == 225k°ΩC FFSET VOLTAGE (µV) –20246 GNAL OVERSHOOT (%) 34560000 O SI UT –4 LL P A 20 N M OS+ I –6 S –1–08 06741-026 100 OS– 06741-029 0 0.5 1.0 1.5 2.0 2.5 1 10 100 1000 INPUT COMMON-MODE VOLTAGE (V) LOAD CAPACITANCE (pF) Figure 28. AD8538 Input Offset Voltage vs. Input Common-Mode Voltage Figure 31. AD8538 Small Signal Overshoot vs. Load Capacitance Rev. B | Page 12 of 24

Data Sheet AD8538/AD8539 1000 AVCSVLY == = 11 020.7pVF VTASY = = 2 52°.7CV RL = 10kΩ Hz) √ V) nV/ V/DI TY ( m SI 0 N E (50 E DE 100 G S LTA NOI VO GE A T L O V 06741-030 10 06741-032 TIME (4µs/DIV) 10 100 1k 10k 100k FREQUENCY (Hz) Figure 32. AD8538 Large Signal Transient Response Figure 33. AD8538 Voltage Noise Density Rev. B | Page 13 of 24

AD8538/AD8539 Data Sheet AD8539 CHARACTERISTICS AD8539 only, V = 5 V or ±2.5 V, unless otherwise noted. S 800 1000.0 AD8539 AD8539 700 VSY = 5V VSY = 5V 0 < VCM < 5V S600 TA = 25°C A)100.0 R p MPLIFIE500 RRENT ( 10.0 F A400 CU O S ER 300 BIA 1.0 NUMB200 NPUT I 0.1 100 0–10–9–8–7–6–5–4–3–2–V1OS0 (µ1V)2 3 4 5 6 7 8 9 10 06741-035 0.015 25 45TEMPERA65TURE (°C8)5 105 125 06741-038 Figure 34. AD8539 Input Offset Voltage Distribution Figure 37. AD8539 Input Bias Current vs. Temperature 60 400 AD8539 AD8539 50 V–4S0Y° C= ±<2 V.5CVM < 125°C 350 –V4S0Y° C= 0<V T TAO < 5+V125°C +125°C S 300 +85°C R E FI40 +25°C LI 250 MP A) –40°C OF A30 (µSY200 R I E 150 MB20 U N 100 10 50 00 0.016 0.032 T0C.V04O8S (µV)0.064 0.080 0.096 06741-036 00 0.5 1.0 1.5 2V.0SY (V2).5 3.0 3.5 4.0 4.5 5.0 06741-039 Figure 35. AD8539 Input Offset Voltage Drift Distribution Figure 38. AD8539 Supply Current vs. Supply Voltage 20 400 AD8539 AD8539 VSY = 5V 375 0V < VCM < 5V TA = 25°C 10 350 325 V (µV)OS 0 I (µA)SY300 VSY = ±2.5V 275 VSY = ±1.35V –10 250 225 –200 1 2 VCM (V) 3 4 5 06741-037 200–40 –25 –10 5 T2E0MPE3R5ATU50RE (°6C5) 80 95 110 125 06741-040 Figure 36. AD8539 Input Offset Voltage vs. Input Common-Mode Voltage Figure 39. AD8539 Supply Current vs. Temperature Rev. B | Page 14 of 24

Data Sheet AD8538/AD8539 10000 120 120 AD8539 SOURCE, VS = ± 2.5V 100 100 mV) 80 80 GE (1000 SINK, VS = ± 1.35V 60 60 A ATURATION VOLT 10100 SOURCE, VS = ± 1.35V SINK, VS = ± 2.5V GAIN (Degrees)––244200000 420––002400PHASE (Degrees) S UT –60 AD8539 –60 P 1 UT –80 VSY = ±2.5V –80 O –100 RL = 2kΩ –100 CL = 20pF 00.1.001 0.01 0.1ILOAD (mA)1 10 100 06741-041 –1201k 10k FREQU1E0N0kCY (Hz) 1M 10M–120 06741-044 Figure 40. AD8539 Output Saturation Voltage vs. Load Current Figure 43. AD8539 Open-Loop Gain and Phase vs. Frequency 140 35 AD8539 AD8539 mV)30 VS = 5V 120 CHANNEL B VSY = ±2.5V E ( VDD - VOH, IL = 250µA, RL = 10kΩ AG25 100 LT CHANNEL A O TION V20 VOL, IL = 250µA, RL = 10kΩ RR (dB) 80 RA15 CM 60 U T A T S10 40 PU VDD - VOH, IL = 25µA, RL = 100kΩ UT 5 20 O VOL, IL = 25µA, RL = 100kΩ –040 –25 –10 5 T2E0MPE3R5ATU50RE (°6C5) 80 95 110 125 06741-042 0100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M06741-045 Figure 41. AD8539 Output Saturation Voltage vs. Temperature Figure 44. AD8539 CMRR vs. Frequency 60 120 AD8539 AD8539 AV = 100 VRSLY = = 2 k±Ω2.5V 100 VSY = ±2.5V dB) 40 CL = 20pF 80 PSRR– N ( AV = 10 OP GAI 20 R (dB) 60 PSRR+ D-LO 0 AV = 1 PSR 40 E S O L 20 C –20 0 –40100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M06741-043 –20100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M06741-046 Figure 42. AD8539 Closed-Loop Gain vs. Frequency Figure 45. AD8539 PSRR vs. Frequency Rev. B | Page 15 of 24

AD8538/AD8539 Data Sheet 1000 AD8539 AD8539 900 VSY = ±2.5V VSY = 5V AV = 1 800 CL = 300pF RL = 10kΩ 700 V) DI 600 V/ (Ω)OUT500 AGE (1 Z400 OLT V 300 200 AV = 100 AV = 10 AV = 1 100 0.01100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M06741-047 TIME (4µs/DIV) 06741-050 Figure 46. AD8539 Closed-Loop Output Impedance vs. Frequency Figure 49. AD8539 Large Signal Transient Response 60 0.15 5 AD8539 AD8539 VSY = ±2.5V 0.10 VSY = ±2.5V 4 50 RL = 2kΩ AV = –50 DIV) 0.05 INPUT VOLTAGE 3 DIV) OVERSHOOT (%)432000 OS+ T VOLTAGE (50mV/––00..01500 210 PUT VOLTAGE (1V/ U T P U OS– N–0.15 –1 O I 10 OUTPUT VOLTAGE –0.20 –2 01 10CAPACITANCE (pF1)00 1k 06741-048 –0.25 TIME (20µs/DIV) –3 06741-051 Figure 47. AD8539 Small Signal Overshoot vs. Load Capacitance Figure 50. AD8539 Positive Overload Recovery 0.05 7.5 AD8539 VSY = 5V 0 6.5 AV = 1 DIV) CRLL == 320k0ΩpF V/DIV)–0.05 INPUT VOLTAGE AVSDY8 5=3 ±92.5V 5.5 V/DIV) mV/ 50m–0.10 AV = –50 4.5 E (5 VOLTAGE (50 T VOLTAGE (––00..1250 32..55 PUT VOLTAG U T P U N–0.25 1.5 O I OUTPUT VOLTAGE –0.30 0.5 TIME (2µs/DIV) 06741-049 –0.35 TIME (20µs/DIV) –0.5 06741-052 Figure 48. AD8539 Small Signal Transient Response Figure 51. AD8539 Negative Overload Recovery Rev. B | Page 16 of 24

Data Sheet AD8538/AD8539 1k AD8539 AD8539 VSY = ±2.5V VSY = ±2.5V V Hz) INPUT VOLTAGE ARVL == 110kΩ n Y ( V) DENSIT E (2V/DI OUTPUT SE 100 AG VOLTAGE OI LT N O E V G A T L O V 10100 1kFREQUENCY (Hz)10k 100k 06741-053 TIME (200µs/DIV) 06741-055 Figure 52. AD8539 Voltage Noise Density Figure 54. AD8539 No Phase Reversal 0.8 0 AD8539 AD8539 0.6 VSY = 5V –20 VSY = ±2.5V AV = 1M 0.4 dB) –40 DIV) ON ( mV/ 0.2 ATI –60 0 R E (20 0 EPA –80 G S A L T–0.2 E–100 L N O N V A –0.4 CH–120 –0.6 –140 –0.8–5 –4 –3 –2 –T1IME (01s/DIV1) 2 3 4 5 06741-054 –160100 1kFREQUENCY (Hz)10k 100k 06741-056 Figure 53. AD8539 0.1 Hz to 10 Hz Input Voltage Noise Figure 55. AD8539 Channel Separation vs. Frequency Rev. B | Page 17 of 24

AD8538/AD8539 Data Sheet V = 2.7 V or ±1.35 V, T = 25°C, AD8539 only, unless otherwise noted. S A 350 35 AD8539 AD8539 300 V0VSY < = V 2C.M7V < 2.7V mV)30 VSY = 2.7V TA = 25°C E ( S G R250 A25 MPLIFIE200 N VOLT20 VDD – VOH, RL = 10kΩ A O NUMBER OF 115000 PUT SATURATI1150 VOVL,D RDL – = V 1O0Hk,Ω RL = 100kΩ T 50 OU 5 VOL, RL = 100kΩ 0–10–9–8–7–6–5–4–3–2–1V0OS1 2 3 4 5 6 7 8 9 10 06741-057 0–40 –25 –10 5 2T0EMP3E5RAT5U0RE 6(°5C) 80 95 110 125 06741-060 Figure 56. AD8539 Input Offset Voltage Distribution Figure 59. AD8539 Output Saturation Voltage vs. Temperature 45 80 AD8539 AD8539 40 VSY = ±1.35V 70 VSY = ±1.35V –40°C < TA < +125°C RL = 2kΩ S35 60 R MPLIFIE3205 OT (%) 50 R OF A20 ERSHO 40 OS+ E V 30 B15 O M U N 20 10 OS– 5 10 00 0.016 0.032 T0C.V04O8S (µV)0.064 0.080 0.096 06741-058 01 10CAPACITANCE (pF1)00 1k 06741-061 Figure 57. AD8539 Input Offset Voltage Drift Distribution Figure 60. AD8539 Small Signal Overshoot vs. Load Capacitance 20 AD8539 1150 TAV0VASD Y 8=< 5= V23 52C9°.M7CV < 2.7V V) AVCRSVLLY === = 311 00±0k1pΩ.3F5V DI 5 mV/ V) 00 (µS 0 E (5 O G V A –5 LT O V –10 –15 –200 0.3 0.6 0.9 1V.2CM (V1).5 1.8 2.1 2.4 2.7 06741-059 TIME (4µs/DIV) 06741-062 Figure 58. AD8539 Input Offset Voltage vs. Input Common-Mode Voltage Figure 61. AD8539 Large Signal Transient Response Rev. B | Page 18 of 24

Data Sheet AD8538/AD8539 1k 0 AD8539 AD8539 Hz) VSY = ±1.35V –20 VSY = ±1.35V SITY (nV/ TION (dB) ––4600 N A E R D A NOISE 100 EL SEP–1–0800 LTAGE CHANN–120 O V –140 10100 1kFREQUENCY (Hz)10k 100k 06741-063 –160100 1kFREQUENCY (Hz)10k 100k 06741-064 Figure 62. AD8539 Voltage Noise Density Figure 63. AD8539 Channel Separation vs. Frequency Rev. B | Page 19 of 24

AD8538/AD8539 Data Sheet OUTLINE DIMENSIONS 2.90 BSC 5 4 1.60 BSC 2.80 BSC 1 2 3 0.95 BSC 1.90 *0.90 MAX BSC 0.70 MIN *1.00 MAX 0.20 0.08 8° 0.10 MAX 0.50 SEATING 4° 0.60 0.30 PLANE 0° 0.45 0.30 *CTHOEM PELXICAENPTT TIOON J OEDF EPCA CSTKAANGDEA HREDIGS HMTO A-1N9D3 -TAHBICWKINTHESS. 100708-A 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) 8 5 4.00(0.1574) 6.20(0.2441) 3.80(0.1497) 1 4 5.80(0.2284) 1.27(0.0500) 0.50(0.0196) BSC 1.75(0.0688) 0.25(0.0099) 45° 0.25(0.0098) 1.35(0.0532) 8° 0.10(0.0040) 0° COPLANARITY 0.51(0.0201) 0.10 SEATING 0.31(0.0122) 0.25(0.0098) 10..2470((00..00510507)) PLANE 0.17(0.0067) COMPLIANTTOJEDECSTANDARDSMS-012-AA C(RINOEFNPEATRRREOENNLCLTEIHNEOGSNDELISYM)AEANNRDSEIAORRNOESUNANORDEETDAIN-POMPFRIFLOLMPIMIRLELIATIMTEEERTFSEO;RIRNECUQHSUEDIVIINMAELDENENSSTIIOGSNNFS.OR 012407-A 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

Data Sheet AD8538/AD8539 3.20 3.00 2.80 8 5 5.15 3.20 4.90 3.00 4.65 2.80 1 4 PIN1 IDENTIFIER 0.65BSC 0.95 15°MAX 0.85 1.10MAX 0.75 0.80 0.15 0.40 6° 0.23 0.55 CO0P.0L50A.1N0ARICTOYMPLIANT0.T25OJEDECSTA0°NDARDS0M.0O9-187-AA 0.40 10-07-2009-B Figure 66. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters ORDERING GUIDE Model1, 2 Temperature Range Package Description Package Option Branding AD8538AUJZ-R2 −40°C to +125°C 5-Lead TSOT-23 UJ-5 A0C AD8538AUJZ-REEL −40°C to +125°C 5-Lead TSOT-23 UJ-5 A0C AD8538AUJZ-REEL7 −40°C to +125°C 5-Lead TSOT-23 UJ-5 A0C AD8538WAUJZ-R7 −40°C to +125°C 5-Lead TSOT-23 UJ-5 AOC AD8538ARZ −40°C to +125°C 8-Lead SOIC_N R-8 AD8538ARZ-REEL −40°C to +125°C 8-Lead SOIC_N R-8 AD8538ARZ-REEL7 −40°C to +125°C 8-Lead SOIC_N R-8 AD8539ARMZ −40°C to +125°C 8-Lead MSOP RM-8 A1S AD8539ARMZ-REEL −40°C to +125°C 8-Lead MSOP RM-8 A1S AD8539ARZ −40°C to +125°C 8-Lead SOIC_N R-8 AD8539ARZ-REEL −40°C to +125°C 8-Lead SOIC_N R-8 AD8539ARZ-REEL7 −40°C to +125°C 8-Lead SOIC_N R-8 1 Z = RoHS Compliant Part. 2 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

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: A nalog Devices Inc.: AD8538ARZ AD8539ARZ-REEL AD8538AUJZ-REEL AD8538ARZ-REEL AD8538ARZ-REEL7 AD8539ARZ AD8538AUJZ-REEL7 AD8539ARMZ AD8538AUJZ-R2 AD8539ARMZ-REEL AD8539ARZ-REEL7 AD8538WAUJZ- R7