AD8574TRUZ-EP

FEATURES PIN CONFIGURATION Low offset voltage: 1 μV Input offset drift: 0.005 μV/°C Rail-to-rail input and output swing 5 V/2.7 V single-supply operation High gain: 145 dB typical CMRR: 140 dB typical PSRR: 130 dB typical Ultralow input bias current: 10 pA typical Low supply current: 750 μA per op amp Overload recovery time: 50 μs No external capacitors required OUT A 1 14 OUT D –IN A 2 13 –IN D +IN A 3 AD8574-EP 12 +IN D TOP VIEW (Not to Scale) 11 V– 10 +IN C –IN B 6 9 –IN C OUT B 7 8 OUT C V+ 4 +IN B 5 09302-003 Enhanced Product Zero-Drift, Single-Supply, Rail-to-Rail I/O Quad, Operational Amplifier AD8574-EP Figure 1. 14-Lead TSSOP GENERAL DESCRIPTION ENHANCED PRODUCT FEATURES Supports defense and aerospace applications (AQEC standard) Military temperature range (−55°C to +125°C) Controlled manufacturing baseline One assembly/test site One fabrication site Product change notification Qualification data available on request APPLICATIONS Temperature sensors Pressure sensors Precision current sensing Strain gage amplifiers This amplifier has ultralow offset, drift, and bias current. The AD8574-EP is a quad amplifier, featuring rail-to-rail input and output swings. It is guaranteed to operate from 2.7 V to 5 V single supply. The AD8574-EP provides benefits previously found only in expensive auto-zeroing or chopper stabilized amplifiers. Using a patented spread spectrum, auto-zero technique, the AD8574 eliminates the intermodulation effects from interaction of the chopping function with the signal frequency in ac applications. With an offset voltage of only 1 μV and drift of 0.005 μV/°C, the AD8574-EP is perfectly suited for applications where error sources must be minimized. The AD8574-EP is specified for the military temperature range (−55°C to +125°C). The AD8574-EP quad amplifier is available in 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 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 ©2010–2018 Analog Devices, Inc. All rights reserved. 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 VS = 5 V, VCM = 2.5 V, VO = 2.5 V, TA = 25°C, unless otherwise noted. Table 1. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol Conditions Min VOS Typ Max Unit 1 5 15 50 1.5 70 200 5 0.04 μV μV pA nA pA pA V dB dB dB dB μV/°C 10 10 V V V V mV mV −55°C ≤ TA ≤ +125°C Input Bias Current IB 10 1.0 20 150 −55°C ≤ TA ≤ +125°C Input Offset Current IOS −55°C ≤ TA ≤ +125°C Input Voltage Range Common-Mode Rejection Ratio CMRR Large Signal Voltage Gain 1 AVO Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low ∆VOS/∆T VOH VOL VCM = 0 V to 5 V −55°C ≤ TA ≤ +125°C RL = 10 kΩ, VO = 0.3 V to 4.7 V −55°C ≤ TA ≤ +125°C −55°C ≤ TA ≤ +125°C RL = 100 kΩ to GND RL = 100 kΩ to GND at −55°C to +125°C RL = 10 kΩ to GND RL = 10 kΩ to GND at −55°C to +125°C RL = 100 kΩ to V+ RL = 100 kΩ to V+ at −55°C to +125°C 0 120 115 125 120 4.99 4.99 4.95 4.95 RL = 10 kΩ to V+ RL = 10 kΩ to V+ at −55°C to +125°C Short-Circuit Limit ISC ±25 −55°C to +125°C Output Current IO −55°C to +125°C POWER SUPPLY Power Supply Rejection Ratio Supply Current per Amplifier DYNAMIC PERFORMANCE Slew Rate Overload Recovery Time Gain Bandwidth Product NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Density 1 PSRR ISY SR VS = 2.7 V to 5.5 V −55°C ≤ TA ≤ +125°C VO = 0 V −55°C ≤ TA ≤ +125°C RL = 10 kΩ GBP en p-p en in 0 Hz to 10 Hz 0 Hz to 1 Hz f = 1 kHz f = 10 Hz Gain testing is dependent upon test bandwidth. Rev. A | Page 3 of 14 120 115 140 130 145 135 0.005 4.998 4.997 4.98 4.975 1 2 10 15 ±50 ±40 ±30 ±15 130 130 850 1000 0.4 0.05 1.5 1.3 0.41 51 2 30 30 975 1075 0.3 mV mV mA mA mA mA dB dB μA μA V/μs ms MHz μV p-p μV p-p nV/√Hz fA/√Hz AD8574-EP Enhanced Product 2.7 V ELECTRICAL CHARACTERISTICS VS = 2.7 V, VCM = 1.35 V, VO = 1.35 V, TA = 25°C, unless otherwise noted. Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol Conditions Min VOS Typ Max Unit 1 5 15 50 1.5 50 200 2.7 μV μV pA nA pA pA V dB dB dB dB µV/°C −55°C ≤ TA ≤ +125°C Input Bias Current IB 10 1.0 10 150 −55°C ≤ TA ≤ +125°C Input Offset Current IOS −55°C ≤ TA ≤ +125°C Input Voltage Range Common-Mode Rejection Ratio CMRR Large Signal Voltage Gain 1 AVO Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High ∆VOS/∆T VOH Output Voltage Low VOL Short-Circuit Limit ISC VCM = 0 V to 2.7 V −55°C ≤ TA ≤ +125°C RL = 10 kΩ, VO = 0.3 V to 2.4 V −55°C ≤ TA ≤ +125°C −55°C ≤ TA ≤ +125°C RL = 100 kΩ to GND RL = 100 kΩ to GND at −55°C to +125°C RL = 10 kΩ to GND RL = 10 kΩ to GND at −55°C to +125°C RL = 100 kΩ to V+ RL = 100 kΩ to V+ at −55°C to +125°C RL = 10 kΩ to V+ RL = 10 kΩ to V+ at −55°C to +125°C 0 115 110 110 105 2.685 2.685 2.67 2.67 ±10 −55°C to +125°C Output Current IO −55°C to +125°C POWER SUPPLY Power Supply Rejection Ratio Supply Current per Amplifier DYNAMIC PERFORMANCE Slew Rate Overload Recovery Time Gain Bandwidth Product NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Density 1 PSRR ISY SR VS = 2.7 V to 5.5 V −55°C ≤ TA ≤ +125°C VO = 0 V −55°C ≤ TA ≤ +125°C 2.697 2.696 2.68 2.675 1 2 10 15 ±15 ±10 ±10 ±5 130 130 750 950 0.04 10 10 20 20 900 1000 V V V V mV mV mV mV mA mA mA mA dB dB μA μA RL = 10 kΩ 0.5 0.05 1 V/μs ms MHz 0 Hz to 10 Hz f = 1 kHz f = 10 Hz 2.0 94 2 μV p-p nV/√Hz fA/√Hz GBP en p-p en in 120 115 130 130 140 130 0.005 Gain testing is dependent upon test bandwidth. Rev. A | Page 4 of 14 Enhanced Product AD8574-EP ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Supply Voltage Input Voltage Differential Input Voltage 1 ESD (Human Body Model) Output Short-Circuit Duration to GND Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature (Soldering, 60 sec) 1 Rating 6V GND to VS + 0.3 V ±5.0 V 2000 V Indefinite −65°C to +150°C −55°C to +125°C −65°C to +150°C 300°C Differential input voltage is limited to ±5.0 V or the supply voltage, whichever is less. Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. THERMAL CHARACTERISTICS θJA is specified for the worst case conditions, that is, θJA is specified for a device soldered in a circuit board for TSSOP packages. Table 4. Thermal Resistance Package Type 14-Lead TSSOP (RU) ESD CAUTION Rev. A | Page 5 of 14 θJA 180 θJC 36 Unit °C/W AD8574-EP Enhanced Product TYPICAL PERFORMANCE CHARACTERISTICS 180 VS = 2.7V VCM = 1.35V TA = 25°C NUMBER OF AMPLIFIERS 140 120 100 80 60 140 120 100 80 60 40 40 20 20 0 –2.5 –1.5 –0.5 1.5 0.5 VS = 5V VCM = 2.5V TA = 25°C 160 0 –2.5 09302-007 2.5 OFFSET VOLTAGE (µV) –1.5 –0.5 0.5 Figure 2. Input Offset Voltage Distribution 12 VS = 5V TA = –40°C, +25°C, +85°C 40 VS = 5V VCM = 2.5V TA = –40°C TO +125°C 10 30 NUMBER OF AMPLIFIERS INPUT BIAS CURRENT (pA) 2.5 Figure 5. Input Offset Voltage Distribution 50 +85°C 20 10 +25°C 0 –10 –40°C 1 2 3 4 INPUT COMMON-MODE VOLTAGE (V) 5 09302-008 0 8 6 4 2 –20 –30 1.5 OFFSET VOLTAGE (µV) 0 0 1 2 3 4 5 6 INPUT OFFSET DRIFT (nV/°C) 09302-011 NUMBER OF AMPLIFIERS 160 09302-010 180 Figure 6. Input Offset Voltage Drift Distribution Figure 3. Input Bias Current vs. Input Common-Mode Voltage 10k 1500 VS = 5V TA = 125°C VS = 5V TA = 25°C 1000 OUTPUT VOLTAGE (mV) 500 0 –500 –1000 100 SOURCE 10 SINK 1 –2000 0 1 2 3 4 COMMON-MODE VOLTAGE (V) 5 Figure 4. Input Bias Current vs. Common-Mode Voltage 0.1 0.0001 0.001 0.01 0.1 1 10 LOAD CURRENT (mA) Figure 7. Output Voltage to Supply Rail vs. Load Current Rev. A | Page 6 of 14 100 09302-012 –1500 09302-009 INPUT BIAS CURRENT (pA) 1k Enhanced Product AD8574-EP 10k 800 VS = 2.7V TA = 25°C SUPPLY CURRENT PER AMPLIFIER (µA) TA = 25°C SINK SOURCE 10 1 0.001 0.01 0.1 1 10 100 LOAD CURRENT (mA) 400 300 200 100 0 09302-013 0.1 0.0001 500 1 3 2 4 6 5 SUPPLY VOLTAGE (V) Figure 8. Output Voltage to Supply Rail vs. Load Current Figure 11. Supply Current per Amplifier vs. Supply Voltage 1000 60 VCM = 2.5V VS = 5V VS = 2.7V CL = 0pF RL = ∞ 50 750 OPEN-LOOP GAIN (dB) INPUT BIAS CURRENT (pA) 0 09302-016 100 600 500 250 40 0 30 45 20 90 10 135 0 180 –10 225 –20 270 PHASE SHIFT (Degrees) OUTPUT VOLTAGE (mV) 1k 700 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) –40 10k 09302-014 –50 1M 10M 100M FREQUENCY (Hz) Figure 9. Input Bias Current vs. Temperature Figure 12. Open-Loop Gain and Phase Shift vs. Frequency 1.0 60 OPEN-LOOP GAIN (dB) 0.8 2.7V 0.6 0.4 0.2 40 0 30 45 20 90 10 135 0 180 –10 225 –20 270 PHASE SHIFT (Degrees) VS = 5V CL = 0pF RL = ∞ 50 5V 0 –75 –50 –25 0 25 50 75 100 TEMPERATURE (°C) 125 150 –40 10k 100k 1M 10M 100M FREQUENCY (Hz) Figure 10. Supply Current vs. Temperature Figure 13. Open-Loop Gain and Phase Shift vs. Frequency Rev. A | Page 7 of 14 09302-018 –30 09302-015 SUPPLY CURRENT (mA) 100k 09302-017 –30 0 –75 AD8574-EP Enhanced Product 60 300 VS = 2.7V CL = 20pF RL = 2kΩ 20 AV = 10 10 0 –10 AV = 1 210 180 150 90 60 –30 30 1k 10k 100k 1M 10M FREQUENCY (Hz) Figure 14. Closed-Loop Gain vs. Frequency AV = 100 120 –20 –40 100 VS = 5V 240 AV = 100 OUTPUT IMPEDANCE (Ω) 30 270 09302-019 CLOSED-LOOP GAIN (dB) 40 AV = 10 AV = 1 0 100 1k 10k 100k 1M 10M FREQUENCY (Hz) Figure 17. Output Impedance vs. Frequency 60 CLOSED-LOOP GAIN (dB) 40 30 20 VS = 2.7V CL = 300pF RL = 2kΩ AV = 1 VS = 5V CL = 20pF RL = 2kΩ 50 AV = 100 AV = 10 10 0 AV = 1 –10 –30 2µs 1k 10k 100k 1M 10M FREQUENCY (Hz) 500mV 09302-020 –40 100 09302-023 –20 Figure 15. Closed-Loop Gain vs. Frequency Figure 18. Large Signal Transient Response 300 270 VS = 5V CL = 300pF RL = 2kΩ AV = 1 VS = 2.7V 210 180 AV = 100 150 120 AV = 10 90 30 0 100 AV = 1 1k 10k 100k 1M FREQUENCY (Hz) 5µs 10M 1V Figure 16. Output Impedance vs. Frequency Figure 19. Large Signal Transient Response Rev. A | Page 8 of 14 09302-024 60 09302-021 OUTPUT IMPEDANCE (Ω) 240 09302-022 50 Enhanced Product AD8574-EP 45 VS = ±1.35V CL = 50pF RL = ∞ AV = 1 50mV +OS 30 25 20 –OS 15 10 5 0 10 100 1k 10k CAPACITANCE (pF) Figure 23. Small Signal Overshoot vs. Load Capacitance Figure 20. Small Signal Transient Response VS = ±2.5V CL = 50pF RL = ∞ AV = 1 0V VS = ±2.5V VIN = –200mV p-p (RET TO GND) CL = 0pF RL = 10kΩ AV = –100 VIN VOUT 0V 20µs 1V 09302-029 50mV 09302-026 5µs BOTTOM SCALE: 1V/DIV TOP SCALE: 200mV/DIV Figure 21. Small Signal Transient Response Figure 24. Positive Overvoltage Recovery 50 40 VS = ±1.35V RL = 2kΩ TA = 25°C VIN 0V 35 30 +OS 25 0V –OS 20 VS = ±2.5V VIN = 200mV p-p (RET TO GND) CL = 0pF RL = 10kΩ AV = –100 15 VOUT 5 0 10 20µs 100 1k CAPACITANCE (pF) 10k 1V BOTTOM SCALE: 1V/DIV TOP SCALE: 200mV/DIV Figure 25. Negative Overvoltage Recovery Figure 22. Small Signal Overshoot vs. Load Capacitance Rev. A | Page 9 of 14 09302-030 10 09302-027 SMALL SIGNAL OVERSHOOT (%) 45 09302-028 5µs VS = ±2.5V RL = 2kΩ TA = 25°C 35 09302-025 SMALL SIGNAL OVERSHOOT (%) 40 AD8574-EP Enhanced Product 140 VS = ±2.5V RL = 2kΩ AV = –100 VIN = 60mV p-p VS = ±1.35V 120 PSRR (dB) 100 80 60 40 10k 100k 1M 10M 1M 10M 1M FREQUENCY (Hz) Figure 29. PSRR vs. Frequency Figure 26. No Phase Reversal 140 140 VS = ±2.5V 120 100 100 PSRR (dB) 120 80 60 60 40 20 20 1k 10k 100k 1M 10M FREQUENCY (Hz) +PSRR 80 40 0 100 09302-032 CMRR (dB) VS = 2.7V 0 100 09302-034 1k 09302-035 0 100 09302-036 1V +PSRR 20 09302-031 200µs –PSRR –PSRR 1k 100k 10k FREQUENCY (Hz) Figure 27. CMRR vs. Frequency Figure 30. PSRR vs. Frequency 140 3.0 VS = 5V 120 2.5 OUTPUT SWING (V p-p) 80 60 40 0 100 2.0 VS = ±1.35V RL = 2kΩ AV = 1 THD + N < 1% TA = 25°C 1.5 1.0 0.5 20 1k 10k 100k FREQUENCY (Hz) 1M 10M 09302-033 CMRR (dB) 100 0 100 1k 10k 100k FREQUENCY (Hz) Figure 31. Maximum Output Swing vs. Frequency Figure 28. CMRR vs. Frequency Rev. A | Page 10 of 14 Enhanced Product AD8574-EP 5.5 VS = ±2.5V RL = 2kΩ AV = 1 THD + N < 1% TA = 25°C 5.0 4.0 312 en (nV/ Hz) 3.5 3.0 2.5 2.0 1.5 260 208 156 104 1.0 52 1k 10k 100k 1M FREQUENCY (Hz) 0 09302-037 0 100 0.5 1.0 1.5 2.0 2.5 FREQUENCY (kHz) 09302-040 0.5 Figure 35. Voltage Noise Density from 0 Hz to 2.5 kHz Figure 32. Maximum Output Swing vs. Frequency VS = ±1.35V AV = 120,000 VS = 2.7V RS = 0Ω 112 en (nV/ Hz) 96 0V 80 64 48 32 5 10 15 20 25 09302-041 0 2.5 09302-042 16 09302-038 50mV 1sec FREQUENCY (kHz) Figure 36. Voltage Noise Density from 0 Hz to 25 kHz Figure 33. 0.1 Hz to 10 Hz Noise VS = ±2.5V AV = 120,000 VS = 5V RS = 0Ω 182 en (nV/ Hz) 156 130 104 78 52 1sec 50mV 26 09302-039 OUTPUT SWING (V p-p) 4.5 VS = 2.7V RS = 0Ω 364 0 0.5 1.0 1.5 2.0 FREQUENCY (kHz) 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 en (nV/ Hz) 96 80 64 48 32 0 5 10 15 20 25 FREQUENCY (kHz) VS = 2.7V 30 ISC– 20 10 0 –10 ISC+ –20 –30 –40 –50 –75 09302-043 16 40 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) 09302-046 112 OUTPUT SHORT-CIRCUIT CURRENT (mA) VS = 5V RS = 0Ω Figure 41. Output Short-Circuit Current vs. Temperature Figure 38. Voltage Noise Density from 0 Hz to 25 kHz 100 150 120 90 60 0 5 10 FREQUENCY (Hz) ISC– 40 20 0 –20 –40 ISC+ –60 –80 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) Figure 39. Voltage Noise Density from 0 Hz to 10 Hz Figure 42. Output Short-Circuit Current vs. Temperature 150 250 225 VS = 2.7V TO 5.5V VS = 2.7V 200 OUTPUT VOLTAGE (mV) 145 140 135 175 150 RL = 1kΩ 125 100 75 50 130 RL = 10kΩ RL = 100kΩ 25 125 –75 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) 150 09302-045 POWER SUPPLY REJECTION (dB) 60 –100 –75 09302-044 30 VS = 5V Figure 40. Power Supply Rejection vs. Temperature 0 –75 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) Figure 43. Output Voltage to Supply Rail vs. Temperature Rev. A | Page 12 of 14 150 09302-048 en (nV/ Hz) 180 80 09302-047 210 OUTPUT SHORT-CIRCUIT CURRENT (mA) VS = 5V RS = 0Ω Enhanced Product AD8574-EP 250 225 VS = 5V 175 RL = 1kΩ 150 125 100 75 50 RL = 10kΩ RL = 100kΩ 25 0 –75 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) 150 09302-049 OUTPUT VOLTAGE (mV) 200 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 4.30 6.40 BSC 1 7 PIN 1 0.65 BSC 1.20 MAX 0.15 0.05 COPLANARITY 0.10 0.30 0.19 0.20 0.09 SEATING PLANE 8° 0° COMPLIANT TO JEDEC STANDARDS MO-153-AB-1 0.75 0.60 0.45 061908-A 1.05 1.00 0.80 Figure 45. 14-Lead Thin Shrink Small Outline Package [TSSOP] (RU-14) Dimensions shown in millimeters ORDERING GUIDE Model 1 AD8574TRU-EP AD8574TRU-EP-RL AD8574TRUZ-EP AD8574TRUZ-EP-RL 1 Temperature Range −55°C to +125°C −55°C to +125°C −55°C to +125°C −55°C to +125°C Package Description 14-Lead Thin Shrink Small Outline Package [TSSOP] 14-Lead Thin Shrink Small Outline Package [TSSOP] 14-Lead Thin Shrink Small Outline Package [TSSOP] 14-Lead Thin Shrink Small Outline Package [TSSOP] 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 Package Option RU-14 RU-14 RU-14 RU-14