Zero-Drift, Single-Supply, Rail-to-Rail I/O Quad, Operational Amplifier Enhanced Product AD8574-EP FEATURES PIN CONFIGURATION Low offset voltage: 1 μV OUT A 1 14 OUT D Input offset drift: 0.005 μV/°C –IN A 2 13 –IN D Rail-to-rail input and output swing +IN A 3 AD8574-EP 12 +IN D 5 V/2.7 V single-supply operation V+ 4 TOP VIEW 11 V– High gain: 145 dB typical +IN B 5 (Not to Scale) 10 +IN C CPSMRRRR: :1 13400 d dBB t tyyppicicaal l O –UINT BB 67 98 –OIUNT C C 09302-003 Ultralow input bias current: 10 pA typical Figure 1. 14-Lead TSSOP Low supply current: 750 μA per op amp GENERAL DESCRIPTION Overload recovery time: 50 μs This amplifier has ultralow offset, drift, and bias current. The No external capacitors required AD8574-EP is a quad amplifier, featuring rail-to-rail input and ENHANCED PRODUCT FEATURES output swings. It is guaranteed to operate from 2.7 V to 5 V Supports defense and aerospace applications (AQEC standard) single supply. Military temperature range (−55°C to +125°C) The AD8574-EP provides benefits previously found only in Controlled manufacturing baseline expensive auto-zeroing or chopper stabilized amplifiers. Using a One assembly/test site patented spread spectrum, auto-zero technique, the AD8574 One fabrication site eliminates the intermodulation effects from interaction of the Product change notification chopping function with the signal frequency in ac applications. Qualification data available on request With an offset voltage of only 1 μV and drift of 0.005 μV/°C, the APPLICATIONS AD8574-EP is perfectly suited for applications where error Temperature sensors sources must be minimized. Pressure sensors The AD8574-EP is specified for the military temperature range Precision current sensing (−55°C to +125°C). The AD8574-EP quad amplifier is available in Strain gage amplifiers a 14-lead TSSOP package. Additional applications and technical information is available in the AD8571/AD8572/AD8574 data sheets. Rev. A 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 ©2010–2018 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com

AD8574-EP Enhanced Product TABLE OF CONTENTS Features .............................................................................................. 1 2.7 V Electrical Characteristics ...................................................4 Enhanced Product Features ............................................................ 1 Absolute Maximum Ratings ............................................................5 Applications ....................................................................................... 1 Thermal Characteristics ...............................................................5 Pin Configuration ............................................................................. 1 ESD Caution...................................................................................5 General Description ......................................................................... 1 Typical Performance Characteristics ..............................................6 Revision History ............................................................................... 2 Outline Dimensions ....................................................................... 14 Specifications ..................................................................................... 3 Ordering Guide .......................................................................... 14 5 V Electrical Characteristics ...................................................... 3 REVISION HISTORY 4/2018—Rev. 0 to Rev. A Changes to Features Section............................................................ 1 Added Enhanced Product Features Section .................................. 1 Changes to Ordering Guide .......................................................... 14 8/2010—Revision 0: Initial Version Rev. A | Page 2 of 14

Enhanced Product AD8574-EP SPECIFICATIONS 5 V ELECTRICAL CHARACTERISTICS V = 5 V, V = 2.5 V, V = 2.5 V, T = 25°C, unless otherwise noted. S CM O A Table 1. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage V 1 5 μV OS −55°C ≤ T ≤ +125°C 15 μV A Input Bias Current I 10 50 pA B −55°C ≤ T ≤ +125°C 1.0 1.5 nA A Input Offset Current I 20 70 pA OS −55°C ≤ T ≤ +125°C 150 200 pA A Input Voltage Range 0 5 V Common-Mode Rejection Ratio CMRR V = 0 V to 5 V 120 140 dB CM −55°C ≤ T ≤ +125°C 115 130 dB A Large Signal Voltage Gain1 A R = 10 kΩ, V = 0.3 V to 4.7 V 125 145 dB VO L O −55°C ≤ T ≤ +125°C 120 135 dB A Offset Voltage Drift ∆V /∆T −55°C ≤ T ≤ +125°C 0.005 0.04 μV/°C OS A OUTPUT CHARACTERISTICS Output Voltage High V R = 100 kΩ to GND 4.99 4.998 V OH L R = 100 kΩ to GND at −55°C to +125°C 4.99 4.997 V L R = 10 kΩ to GND 4.95 4.98 V L R = 10 kΩ to GND at −55°C to +125°C 4.95 4.975 V L Output Voltage Low V R = 100 kΩ to V+ 1 10 mV OL L RL = 100 kΩ to V+ at −55°C to +125°C 2 10 mV R = 10 kΩ to V+ 10 30 mV L R = 10 kΩ to V+ at −55°C to +125°C 15 30 mV L Short-Circuit Limit I ±25 ±50 mA SC −55°C to +125°C ±40 mA Output Current I ±30 mA O −55°C to +125°C ±15 mA POWER SUPPLY Power Supply Rejection Ratio PSRR V = 2.7 V to 5.5 V 120 130 dB S −55°C ≤ T ≤ +125°C 115 130 dB A Supply Current per Amplifier I V = 0 V 850 975 μA SY O −55°C ≤ T ≤ +125°C 1000 1075 μA A DYNAMIC PERFORMANCE Slew Rate SR R = 10 kΩ 0.4 V/μs L Overload Recovery Time 0.05 0.3 ms Gain Bandwidth Product GBP 1.5 MHz NOISE PERFORMANCE Voltage Noise e p-p 0 Hz to 10 Hz 1.3 μV p-p n 0 Hz to 1 Hz 0.41 μV p-p Voltage Noise Density e f = 1 kHz 51 nV/√Hz n Current Noise Density i f = 10 Hz 2 fA/√Hz n 1 Gain testing is dependent upon test bandwidth. Rev. A | Page 3 of 14

AD8574-EP Enhanced Product 2.7 V ELECTRICAL CHARACTERISTICS V = 2.7 V, V = 1.35 V, V = 1.35 V, T = 25°C, unless otherwise noted. S CM O A Table 2. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage V 1 5 μV OS −55°C ≤ T ≤ +125°C 15 μV A Input Bias Current I 10 50 pA B −55°C ≤ T ≤ +125°C 1.0 1.5 nA A Input Offset Current I 10 50 pA OS −55°C ≤ T ≤ +125°C 150 200 pA A Input Voltage Range 0 2.7 V Common-Mode Rejection Ratio CMRR V = 0 V to 2.7 V 115 130 dB CM −55°C ≤ T ≤ +125°C 110 130 dB A Large Signal Voltage Gain1 A R = 10 kΩ, V = 0.3 V to 2.4 V 110 140 dB VO L O −55°C ≤ T ≤ +125°C 105 130 dB A Offset Voltage Drift ∆V /∆T −55°C ≤ T ≤ +125°C 0.005 0.04 µV/°C OS A OUTPUT CHARACTERISTICS Output Voltage High V R = 100 kΩ to GND 2.685 2.697 V OH L R = 100 kΩ to GND at −55°C to +125°C 2.685 2.696 V L R = 10 kΩ to GND 2.67 2.68 V L R = 10 kΩ to GND at −55°C to +125°C 2.67 2.675 V L Output Voltage Low V R = 100 kΩ to V+ 1 10 mV OL L R = 100 kΩ to V+ at −55°C to +125°C 2 10 mV L R = 10 kΩ to V+ 10 20 mV L R = 10 kΩ to V+ at −55°C to +125°C 15 20 mV L Short-Circuit Limit I ±10 ±15 mA SC −55°C to +125°C ±10 mA Output Current I ±10 mA O −55°C to +125°C ±5 mA POWER SUPPLY Power Supply Rejection Ratio PSRR V = 2.7 V to 5.5 V 120 130 dB S −55°C ≤ T ≤ +125°C 115 130 dB A Supply Current per Amplifier I V = 0 V 750 900 μA SY O −55°C ≤ T ≤ +125°C 950 1000 μA A DYNAMIC PERFORMANCE Slew Rate SR R = 10 kΩ 0.5 V/μs L Overload Recovery Time 0.05 ms Gain Bandwidth Product GBP 1 MHz NOISE PERFORMANCE Voltage Noise e p-p 0 Hz to 10 Hz 2.0 μV p-p n Voltage Noise Density e f = 1 kHz 94 nV/√Hz n Current Noise Density i f = 10 Hz 2 fA/√Hz n 1 Gain testing is dependent upon test bandwidth. Rev. A | Page 4 of 14

Enhanced Product AD8574-EP ABSOLUTE MAXIMUM RATINGS Stresses at or above those listed under Absolute Maximum Table 3. Ratings may cause permanent damage to the product. This is a Parameter Rating stress rating only; functional operation of the product at these Supply Voltage 6 V or any other conditions above those indicated in the operational Input Voltage GND to V + 0.3 V S section of this specification is not implied. Operation beyond Differential Input Voltage1 ±5.0 V the maximum operating conditions for extended periods may ESD (Human Body Model) 2000 V affect product reliability. Output Short-Circuit Duration to GND Indefinite Storage Temperature Range −65°C to +150°C THERMAL CHARACTERISTICS Operating Temperature Range −55°C to +125°C θ is specified for the worst case conditions, that is, θ is JA JA Junction Temperature Range −65°C to +150°C specified for a device soldered in a circuit board for TSSOP Lead Temperature (Soldering, 60 sec) 300°C packages. 1 Differential input voltage is limited to ±5.0 V or the supply voltage, Table 4. Thermal Resistance whichever is less. Package Type θ θ Unit JA JC 14-Lead TSSOP (RU) 180 36 °C/W ESD CAUTION Rev. A | Page 5 of 14

AD8574-EP Enhanced Product TYPICAL PERFORMANCE CHARACTERISTICS 180 180 VS = 2.7V VS = 5V 160 VCM = 1.35V 160 VCM = 2.5V TA = 25°C TA = 25°C 140 140 S S R R E E FI 120 FI 120 LI LI P P M 100 M 100 A A F F R O 80 R O 80 E E MB 60 MB 60 U U N N 40 40 20 20 –02.5 –1.5 O–F0F.5SET VOL0T.A5GE (µV)1.5 2.5 09302-007 –02.5 –1.5 O–F0F.5SET VOL0T.A5GE (µV)1.5 2.5 09302-010 Figure 2. Input Offset Voltage Distribution Figure 5. Input Offset Voltage Distribution 50 12 VS = 5V 40 TA = –40°C, +25°C, +85°C VS = 5V 10 VCM = 2.5V A) 30 S TA = –40°C TO +125°C p R ENT ( 20 +85°C LIFIE 8 R P R M U A S C 10 OF 6 BIA 0 +25°C ER UT MB 4 P U N –10 N I –40°C 2 –20 –300 1INPUT COMM2ON-MODE V3OLTAGE (V4) 5 09302-008 00 1 INPU2T OFFSET3 DRIFT (n4V/°C) 5 6 09302-011 Figure 3. Input Bias Current vs. Input Common-Mode Voltage Figure 6. Input Offset Voltage Drift Distribution 1500 10k VTAS == 152V5°C VTAS == 255V°C 1000 1k NT (pA) 500 E (mV) E G 100 R 0 A R T U L C O T BIAS –500 TPUT V 10 SOURCE SINK U U P–1000 O N I 1 –1500 –20000 1 COMMON2-MODE VOL3TAGE (V) 4 5 09302-009 00.1.0001 0.001 0.L0O1AD CU0R.R1ENT (mA1) 10 100 09302-012 Figure 4. Input Bias Current vs. Common-Mode Voltage Figure 7. Output Voltage to Supply Rail vs. Load Current Rev. A | Page 6 of 14

Enhanced Product AD8574-EP 10k 800 VTAS == 225.7°VC A) 700 TA = 25°C µ 1k R ( E V) FI 600 m LI GE ( 100 AMP 500 OUTPUT VOLTA 10 SOURCE SINK Y CURRENT PER 234000000 1 PL P SU 100 00.1.0001 0.001 0.L0O1AD CU0R.R1ENT (mA1) 10 100 09302-013 00 1 S2UPPLY VO3LTAGE (4V) 5 6 09302-016 Figure 8. Output Voltage to Supply Rail vs. Load Current Figure 11. Supply Current per Amplifier vs. Supply Voltage 1000 60 VVCS M= =5 V2.5V 50 VCRSLL === 2∞0.p7FV 40 0 A) 750 RENT (p AIN (dB) 2300 4950 Degrees) NPUT BIAS CUR 520500 OPEN-LOOP G –11000 112382505 PHASE SHIFT ( I –20 270 –30 0–75 –50 –25 0TEMP2E5RATU5R0E (°C7)5 100 125 150 09302-014 –4010k 100k FREQU1EMNCY (Hz) 10M 100M 09302-017 Figure 9. Input Bias Current vs. Temperature Figure 12. Open-Loop Gain and Phase Shift vs. Frequency 1.0 60 VS= 5V 5V 50 RCLL == ∞0pF 0.8 40 0 ENT (mA) 0.6 2.7V AIN (dB) 2300 4950 Degrees) SUPPLY CURR 0.4 OPEN-LOOP G –11000 112382505 PHASE SHIFT ( 0.2 –20 270 –30 0–75 –50 –25 0TEMP2E5RATU5R0E (°C7)5 100 125 150 09302-015 –4010k 100k FREQU1EMNCY (Hz) 10M 100M 09302-018 Figure 10. Supply Current vs. Temperature Figure 13. Open-Loop Gain and Phase Shift vs. Frequency Rev. A | Page 7 of 14

AD8574-EP Enhanced Product 60 300 50 VCSL == 22.07pVF 270 VS= 5V RL = 2kΩ 40 240 D-LOOP GAIN (dB) 1230000 AAVV == 11000 T IMPEDANCE (Ω) 112158120000 AV = 100 SE AV = 1 PU CLO –10 OUT 90 AV = 10 –20 60 –30 30 AV = 1 –40100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M 09302-019 0100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M 09302-022 Figure 14. Closed-Loop Gain vs. Frequency Figure 17. Output Impedance vs. Frequency 60 4500 VRCSLL === 522V0kpΩF CRAVSLLV ==== 2321.0k70ΩVpF B) AV = 100 d 30 N ( AI 20 P G AV = 10 O 10 O L D- 0 SE AV = 1 LO –10 C –20 ––4300 2µs 500mV 09302-023 100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M 09302-020 Figure 15. Closed-Loop Gain vs. Frequency Figure 18. Large Signal Transient Response 300 270 VS= 2.7V CVSL == 53V00pF RL = 2kΩ 240 AV = 1 Ω) E ( 210 C N 180 A PED 150 AV = 100 M T I 120 U UTP 90 AV = 10 O 60 300 AV = 1 5µs 1V 09302-024 100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M 09302-021 Figure 16. Output Impedance vs. Frequency Figure 19. Large Signal Transient Response Rev. A | Page 8 of 14

Enhanced Product AD8574-EP 45 VCRASLLV ==== ∞±5110.p3F5V %) 40 RTVASL === 22±52k°.Ω5CV T ( 35 O +OS O H 30 S R VE 25 O L A 20 N G –OS SI 15 L L A M 10 S 5µs 50mV 09302-025 05 10 10C0APACITANCE (pF)1k 10k 09302-028 Figure 20. Small Signal Transient Response Figure 23. Small Signal Overshoot vs. Load Capacitance VS = ±2.5V CL = 50pF 0V RALV == ∞1 VIN VVSIN == ±(–R22.E050TVm TVO pG-pND) CL = 0pF RL = 10kΩ AV = –100 VOUT 5µs 50mV 09302-026 0V BTOOPT TSOCMA LSE2C0:A µ2Ls0E0m: 1VV/D/DIVIV 1V 09302-029 Figure 21. Small Signal Transient Response Figure 24. Positive Overvoltage Recovery 50 45 RVSL == ±21k.Ω35V VIN TA = 25°C 40 %) 0V OOT ( 35 VVSIN == ±220.05mVV p-p H 30 (RET TO GND) OVERS 25 +OS 0V CRALLV === 01–p01k0FΩ0 AL 20 –OS N G SI 15 L AL 10 VOUT M S 5 20µs 1V 0010 10C0APACITANCE (pF)1k 10k 09302-027 BTOOPT TSOCMA LSEC:A 2L0E0m: 1VV/D/DIVIV 09302-030 Figure 22. Small Signal Overshoot vs. Load Capacitance Figure 25. Negative Overvoltage Recovery Rev. A | Page 9 of 14

AD8574-EP Enhanced Product 140 RVSL == ±22k.Ω5V VS = ±1.35V AV = –100 120 VIN = 60mV p-p 100 B) 80 d R ( R S 60 P 40 –PSRR +PSRR 200µs 1V 09302-031 200 100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M 09302-034 Figure 26. No Phase Reversal Figure 29. PSRR vs. Frequency 140 140 VS = 2.7V VS = ±2.5V 120 120 100 100 +PSRR B) 80 B) 80 d d R ( R ( R R M 60 S 60 C P 40 40 –PSRR 20 20 0100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M 09302-032 0100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M 09302-035 Figure 27. CMRR vs. Frequency Figure 30. PSRR vs. Frequency 140 3.0 VS = 5V 120 2.5 VS = ±1.35V dB) 10800 G (V p-p) 2.0 RATTAHLV D=== +221 5kN°ΩC < 1% RR ( WIN 1.5 CM 60 T S U TP 1.0 40 U O 20 0.5 0100 1k F1R0EkQUENCY1 (0H0zk) 1M 10M 09302-033 0100 1k FREQU1E0NkCY (Hz) 100k 1M 09302-036 Figure 28. CMRR vs. Frequency Figure 31. Maximum Output Swing vs. Frequency Rev. A | Page 10 of 14

Enhanced Product AD8574-EP 5.5 5.0 VRSL == ±22kΩ.5V 364 VS = 2.7V AV = 1 RS = 0Ω 4.5 THD + N < 1% TA = 25°C 312 p) 4.0 WING (V p- 33..05 nV/ Hz) 220680 UT S 2.5 en ( 156 P 2.0 T U O 1.5 104 1.0 52 0.5 0100 1k FREQU1E0NkCY (Hz) 100k 1M 09302-037 0 0.5 FR1E.0QUENCY (k1H.5z) 2.0 2.5 09302-040 Figure 32. Maximum Output Swing vs. Frequency Figure 35. Voltage Noise Density from 0 Hz to 2.5 kHz VASV == ±112.03,50V00 112 RVSS == 20.Ω7V 96 80 Hz) 0V V/ 64 n n ( e 48 32 1sec 50mV 09302-038 16 0 5 FR1E0QUENCY (k1H5z) 20 25 09302-041 Figure 33. 0.1 Hz to 10 Hz Noise Figure 36. Voltage Noise Density from 0 Hz to 25 kHz AVSV == ±122.05,V000 182 RVSS == 50VΩ 156 130 Hz) V/ 104 n n ( e 78 52 1sec 50mV 09302-039 260 0.5 FR1E.0QUENCY (1k.H5z) 2.0 2.5 09302-042 Figure 34. 0.1 Hz to 10 Hz Noise Figure 37. Voltage Noise Density from 0 Hz to 2.5 kHz Rev. A | Page 11 of 14

AD8574-EP Enhanced Product 50 112 VS = 5V A) 40 VS = 2.7V RS = 0Ω m T ( 30 96 EN ISC– RR 20 80 U Hz) T C 10 n (nV/ 64 CIRCUI 0 e 48 RT- –10 O 32 T SH –20 ISC+ PU –30 16 UT O –40 0 5 FR1E0QUENCY (k1H5z) 20 25 09302-043 –50–75 –50 –25 0TEMP2E5RATU5R0E (°C7)5 100 125 150 09302-046 Figure 38. Voltage Noise Density from 0 Hz to 25 kHz Figure 41. Output Short-Circuit Current vs. Temperature 100 210 VS = 5V A) 80 VS = 5V RS = 0Ω m T ( 60 180 EN ISC– RR 40 Hz) 150 T CU 20 nV/ 120 RCUI 0 n ( CI e 90 RT- –20 O SH –40 60 T ISC+ PU –60 30 UT O –80 0 FREQUE5NCY (Hz) 10 09302-044 –100–75 –50 –25 0TEMP2E5RATU5R0E (°C7)5 100 125 150 09302-047 Figure 39. Voltage Noise Density from 0 Hz to 10 Hz Figure 42. Output Short-Circuit Current vs. Temperature 150 250 VS = 2.7V TO 5.5V 225 VS = 2.7V dB) 145 200 CTION ( E (mV) 175 Y REJE 140 OLTAG 115205 RL = 1kΩ L V R SUPP 135 UTPUT 10705 E O W O 130 50 P RL = 10kΩ RL= 100kΩ 25 125–75 –50 –25 0TEMP2E5RATU5R0E (°C7)5 100 125 150 09302-045 0–75 –50 –25 0TEMP2E5RATU5R0E (°C7)5 100 125 150 09302-048 Figure 40. Power Supply Rejection vs. Temperature Figure 43. Output Voltage to Supply Rail vs. Temperature Rev. A | Page 12 of 14

Enhanced Product AD8574-EP 250 225 VS = 5V 200 V) E (m 175 RL = 1kΩ G 150 A T OL 125 V UT 100 P T U 75 O 50 RL = 10kΩ RL= 100kΩ 25 0–75 –50 –25 0TEMP2E5RATU5R0E (°C7)5 100 125 150 09302-049 Figure 44. Output Voltage to Supply Rail vs. Temperature Rev. A | Page 13 of 14

AD8574-EP Enhanced Product OUTLINE DIMENSIONS 5.10 5.00 4.90 14 8 4.50 4.40 6.40 BSC 4.30 1 7 PIN 1 0.65 BSC 1.05 1.00 1M.A20X 0.20 0.80 0.09 0.75 0.15 8° 0.60 0.05 0.30 SPLEAATNIENG 0° 0.45 COPLANARITY 0.19 0.10 COMPLIANT TO JEDEC STANDARDS MO-153-AB-1 061908-A Figure 45. 14-Lead Thin Shrink Small Outline Package [TSSOP] (RU-14) Dimensions shown in millimeters ORDERING GUIDE Model1 Temperature Range Package Description Package Option AD8574TRU-EP −55°C to +125°C 14-Lead Thin Shrink Small Outline Package [TSSOP] RU-14 AD8574TRU-EP-RL −55°C to +125°C 14-Lead Thin Shrink Small Outline Package [TSSOP] RU-14 AD8574TRUZ-EP −55°C to +125°C 14-Lead Thin Shrink Small Outline Package [TSSOP] RU-14 AD8574TRUZ-EP-RL −55°C to +125°C 14-Lead Thin Shrink Small Outline Package [TSSOP] RU-14 1 Z = RoHS Compliant Part ©2010–2018 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09302-0-4/18(A) Rev. A | Page 14 of 14

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: A nalog Devices Inc.: AD8572ARZ-REEL AD8574AR-REEL AD8572ARZ-REEL7 AD8572ARUZ-REEL AD8572AR-REEL7 AD8572ARZ AD8574AR-REEL7 AD8574ARZ AD8571ARZ AD8574ARUZ AD8574AR AD8571ARMZ AD8572AR-REEL AD8571ARZ-REEL AD8574TRU-EP-RL AD8574ARZ-REEL AD8571ARMZ-REEL AD8574ARUZ-REEL AD8571ARZ-REEL7 AD8574ARZ-REEL7 AD8574TRU-EP AD8572ARUZ AD8572AR AD8574TRUZ-EP AD8574TRUZ-EP-RL