AD707KN

AD707 AD | Alldatasheet

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TO-99 (H) Package AD707 NULL NULL –IN +IN –VS +VS OUTPUT NC NC = NO CONNECT NOTE: PIN 4 CONNECTED TO CASE Plastic (N) and Cerdip (Q) Packages SOIC (R) Package REV. B 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a Ultralow Drift Op Amp AD707 © Analog Devices, Inc., 1995 Tel: 617/329-4700 Fax: 617/326-8703

FEATURES

0.1 mV/8C max Offset Voltage Drift 0.35 mV p-p max Voltage Noise (0.1 Hz to 10 Hz}

8 V/mV min Open-Loop Gain

1 nA max Input Bias Current AC Performance

0.3 V/ ms Slew Rate

0.9 MHz Closed-Loop Bandwidth

Dual Version: AD708 Available in Tape and Reel in Accordance with EIA-481A Standard APPLICATION HIGHLIGHTS 1. The AD707’s 13 V/µV typical open-loop gain and 140 dB typical common-mode rejection ratio make it ideal for precision instrumentation applications. 2. The precision of the AD707 makes tighter error budgets possible at a lower cost. 3. The low offset voltage drift and low noise of the AD707 allow the designer to amplify very small signals without sacrificing overall system performance. 4. The AD707 can be used where chopper amplifiers are required, but without the inherent noise and application problems. 5. The AD707 is an improved pin-for-pin replacement for the LT1001. PRODUCT DESCRIPTION The AD707 is a low cost, high precision op amp with state-of- the-art performance that makes it ideal for a wide range of precision applications. The offset voltage spec of less than 15 µV is the best available in a bipolar op amp, and maximum input offset current is 1.0 nA. The top grade is the first bipolar monolithic op amp to offer a maximum offset voltage drift of 0.1 µV/°C, and offset current drift and input bias current drift are both specified at 25 pA/ °C maximum. The AD707’s open-loop gain is 8 V/µV minimum over the full ± 10 V output range when driving a 1 k Ω load. Maximum input voltage noise is 350 nV p-p (0.1 Hz to 10 Hz). CMRR and PSRR are 130 dB and 120 dB minimum, respectively. The AD707 is available in versions specified over commercial, industrial and military temperature ranges. It is offered in 8-pin plastic mini-DIP, small outline (SOIC), hermetic cerdip and hermetic TO-99 metal can packages. Chips, MIL-STD-883B, Rev. C, and tape & reel parts are also available. AD707 NC = NO CONNECT NULL NC OUTPUT +VS NULL –IN +IN –VS AD707 NC = NO CONNECT NULL NC OUTPUT +VS NULL –IN +IN –VS

AD707–SPECIFICATIONS REV. B–2– (@ +258C and 615 V, unless otherwise noted) AD707J/A AD707K/B Conditions Min Typ Max Min Typ Max Units INPUT OFFSET VOLTAGE Initial 30 90 10 25 µV TMIN to TMAX 50 100 15 45 µV Long-Term Stability 0.3 0.3 µV/month Adjustment Range R2 = 20 k Ω (Figure 19) ± 4 ± 4m V INPUT BIAS CURRENT 1.0 2.5 0.5 2.0 nA TMIN to TMAX 2.0 4.0 1.5 4.0 nA Average Drift 15 40 15 40/40/40 pA/ °C OFFSET CURRENT V CM = 0 V 0.5 2.0 0.3 1.5 nA TMIN to TMAX 2.0 4.0 1.0 2.0 nA Average Drift 2 40 1 25/25/35 pA/ °C f = 10 Hz 10.3 28 10.3 18 nV/ √Hz f = 100 Hz 10.0 13.0 10.0 12 nV/ √Hz f = 1 kHz 9.6 11.0 9.6 11.0 nV/ √Hz INPUT CURRENT NOISE 0.1 Hz to 10 Hz 14 35 14 30 pA p-p f = 10 Hz 0.32 0.9 0.32 0.8 pA/ √Hz f = 100 Hz 0.14 0.27 0.14 0.23 pA/ √Hz f = 1 kHz 0.12 0.18 0.12 0.17 pA/ √Hz COMMON-MODE REJECTION RATIO V CM = ± 13 V 120 140 130 140 dB TMIN to TMAX 120 140 120 140 dB OPEN-LOOP GAIN V O = ± 10 V RLOAD ≥ 2 kΩ 3 13 5 13 V/ µV TMIN to TMAX 3 13 3 13 V/ µV POWER SUPPLY REJECTION RATIO V S = ± 3 V to ± 18 V 110 130 115 130 dB TMIN to TMAX 110 130 110 130 dB FREQUENCY RESPONSE Closed-Loop Bandwidth 0.4 0.9 0.4 0.9 MHz Slew Rate 0.12 0.3 0.12 0.3 V/ µs INPUT RESISTANCE Differential 24 100 45 200 M Ω Common Mode 200 300 G Ω OUTPUT CHARACTERISTICS Voltage R LOAD ≥ 10 kΩ 13.5 14 13.5 14 ± V RLOAD ≥ 2 kΩ 12.5 13.0 12.5 13.0 ± V RLOAD ≥ 1 kΩ 12.0 12.5 12.0 12.5 ± V RLOAD ≥ 2 kΩ TMIN to TMAX 12.0 13.0 12.0 13.0 ± V OPEN-LOOP OUTPUT RESISTANCE 60 60 Ω POWER SUPPLY Current, Quiescent 2.5 3 2.5 3 mA Power Consumption, No Load V S = ± 15 V 75 90 75 90 mW VS = ± 3 V 7.5 9.0 7.5 9.0 mW NOTES All min and max specifications are guaranteed. Specifications in boldface are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels. Specifications subject to change without notice.

REV. B –3– ABSOLUTE MAXIMUM RATINGS 1 NOTES 1Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. Exposure to absolute maximum rating condi- tions for extended periods may affect device reliability. 28-pin plastic package: θJA = 165°C/Watt; 8-pin cerdip package: θJA = 110°C/Watt; 8-pin small outline package: θJA = 155 °C/Watt; 8-pin header package: θJA = 200°C/Watt. ORDERING GUIDE Temperature Package Package Model Range Description Option AD707AH –40 °C to +85°C 8-Pin Metal Can H-08A AD707AQ –40 °C to +85°C 8-Pin Ceramic DIP Q-8 AD707AR –40 °C to +85°C 8-Pin Plastic SOIC SO-8 AD707AR-REEL –40 °C to +85°C 8-Pin Plastic SOIC SO-8 AD707AR-REEL7 –40 °C to +85°C 8-Pin Plastic SOIC SO-8 AD707BQ –40 °C to +85°C 8-Pin Ceramic DIP Q-8 AD707JN 0 °C to +70°C 8-Pin Plastic DIP N-8 AD707JR 0 °C to +70°C 8-Pin Plastic SOIC SO-8 AD707JR-REEL 0 °C to +70°C 8-Pin Plastic SOIC SO-8 AD707JR-REEL7 0 °C to +70°C 8-Pin Plastic SOIC SO-8 AD707KN 0 °C to +70°C 8-Pin Plastic DIP N-8 AD707KR 0 °C to +70°C 8-Pin Plastic SOIC SO-8 AD707KR-REEL 0 °C to +70°C 8-Pin Plastic SOIC SO-8 AD707KR-REEL7 0 °C to +70°C 8-Pin Plastic SOIC SO-8 METALIZATION PHOTOGRAPH Dimensions shown in inches and (mm). Contact factory for latest dimensions. 0.059 (1.51) NULL +VS VOUT S +IN –IN NULL 0.110 (2.79) WARNING! ESD SENSITIVE DEVICE CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD707 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.

Figure 2. Output Voltage Swing

256 UNITS

Figure 5. Typical Distribution of Figure 8. Input Noise Spectral Figure 3. Output Voltage Swing Figure 6. Output Impedance vs. Figure 9. 0.1 Hz to 10 Hz Voltage Figure 1. Input Common-Mode Figure 4. Offset Voltage Warm-Up Figure 7. Input Current vs.

1 LSB of error in an 18-bit system over the military temperature

resolves up to 20 bits at +25 °C. Figure 22. 18-Bit Settling Figure 23. Op Amp Settling Time Test Circuit Figure 24. A 3 Op Amp Instrumentation Amplifier R3/R4, must track each other better than 10 ppm/ °C. Figure 25. Instrumentation Amplifier

C1164a–2–12/95PRINTED IN U.S.A. Dimensions shown in inches and (mm). current which is derived from a differential input voltage. Figure 26. Precision Current Source/Sink 10 mA, and the available V IN is only 10 mV.