AD712AH

AD712 AD | Alldatasheet

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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 AD712 CONNECTION DIAGRAMS TO-99 (H) Package OUTPUT INVERTING OUTPUT NONINVERTING OUTPUT OUTPUT INVERTING INPUT NONINVERTING INPUT –VS +VS AMPLIFIER NO. 2AMPLIFIER NO. 1 AD712 Plastic Mini-DIP (N) Package SOIC (R) Package and Cerdip (Q) Package OUTPUT INVERTING OUTPUT NONINVERTING OUTPUT OUTPUT INVERTING INPUT NONINVERTING INPUTV– AD712 AMPLIFIER NO. 2AMPLIFIER NO. 1

FEATURES

Enhanced Replacements for LF412 and TL082 AC PERFORMANCE Settles to 60.01% in 1.0 ms

16 V/ ms min Slew Rate (AD712J)

3 MHz min Unity Gain Bandwidth (AD712J)

0.30 mV max Offset Voltage: (AD712C) 5 mV/8C max Drift: (AD712C)

200 V/mV min Open-Loop Gain (AD712K)

4 mV p-p max Noise, 0.1 Hz to 10 Hz (AD712C) Surface Mount Available in Tape and Reel in Accor- dance with EIA-481A Standard MIL-STD-883B Parts Available Single Version Available: AD711 Quad Version: AD713 Available in Plastic Mini-DIP, Plastic SOIC, Hermetic Cerdip, Hermetic Metal Can Packages and Chip Form Dual Precision, Low Cost, High Speed, BiFET Op Amp PRODUCT DESCRIPTION The AD712 is a high speed, precision monolithic operational amplifier offering high performance at very modest prices. Its very low offset voltage and offset voltage drift are the results of advanced laser wafer trimming technology. These performance benefits allow the user to easily upgrade existing designs that use older precision BiFETs and, in many cases, bipolar op amps. The superior ac and dc performance of this op amp makes it suitable for active filter applications. With a slew rate of 16 V/ µs and a settling time of 1 µs to ± 0.01%, the AD712 is ideal as a buffer for 12-bit D/A and A/D Converters and as a high-speed integrator. The settling time is unmatched by any similar IC amplifier. The combination of excellent noise performance and low input current also make the AD712 useful for photo diode preamps. Common-mode rejection of 88 dB and open loop gain of

400 V/mV ensure 12-bit performance even in high-speed unity

gain buffer circuits. The AD712 is pinned out in a standard op amp configuration and is available in seven performance grades. The AD712J and AD712K are rated over the commercial temperature range of 0°C to +70°C. The AD712A, AD712B and AD712C are rated over the industrial temperature range of –40 °C to +85°C. The AD712S and AD712T are rated over the military temperature range of –55°C to +125°C and are available processed to MIL- STD-883-B, Rev. C. Extended reliability PLUS screening is available, specified over the commercial and industrial temperature ranges. PLUS screening includes 168-hour burn-in, as well as other environ- mental and physical tests. The AD712 is available in an 8-lead plastic mini-DIP, SOIC, cerdip, TO-99 metal can, or in chip form. PRODUCT HIGHLIGHTS 1. The AD712 offers excellent overall performance at very competitive prices. 2. Analog Devices’ advanced processing technology and with 100% testing guarantees a low input offset voltage (0.3 mV max, C grade, 3 mV max, J grade). Input offset voltage is specified in the warmed-up condition. Analog Devices’ laser wafer drift trimming process reduces input offset voltage drifts to 5 µV/°C max on the AD712C. 3. Along with precision dc performance, the AD712 offers excellent dynamic response. It settles to ± 0.01% in 1 µs and has a minimum slew rate of 16 V/ µs. Thus this device is ideal for applications such as DAC and ADC buffers which re- quire a combination of superior ac and dc performance. 4. The AD712 has a guaranteed and tested maximum voltage noise of 4 µV p-p, 0.1 Hz to 10 Hz (AD712C). 5. Analog Devices’ well-matched, ion-implanted JFETs ensure a guaranteed input bias current (at either input) of 50 pA max (AD712C) and an input offset current of 10 pA max (AD712C). Both input bias current and input offset current are guaranteed in the warmed-up condition. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1998

AD712J/A/S AD712K/B/T AD712C Parameter Min Typ Max Min Typ Max Min Typ Max Units INPUT OFFSET VOLTAGE 1 TMIN to TMAX 4/2/2 2.0 /1.5/1.5 0.6 mV vs. Temp 7 20/20/ 20 7 10 3 5 µV/°C vs. Supply 76 95 80 100 86 110 dB TMIN to TMAX 76/76/76 80 86 dB Long-Term Offset Stability 15 15 15 µV/Month INPUT BIAS CURRENT 2 VCM = 0 V 25 75 20 75 20 50 pA VCM = ± 10 V 100 100 75 pA INPUT OFFSET CURRENT VCM = 0 V 10 25 5 25 5 10 pA MATCHING CHARACTERISTICS Input Offset Voltage 3/1/1 1.0 /0.7/0.7 0.3 mV TMIN to TMAX 4/2/2 2.0 /1.5/1.5 0.6 mV Input Offset Voltage Drift 20/20/ 20 10 5 µV/°C Input Bias Current 25 25 10 pA Crosstalk @ f = 1 kHz 120 120 120 dB @ f = 100 kHz 90 90 90 dB FREQUENCY RESPONSE Full Power Response 200 200 200 kHz Slew Rate 16 20 18 20 18 20 V/ µs Total Harmonic Distortion 0.0003 0.0003 0.0003 % INPUT IMPEDANCE Differential 3 × 1012i5.5 3 × 1012i5.5 3 × 1012i5.5 Ω ipF Common Mode 3 × 1012i5.5 3 × 1012i5.5 3 × 1012i5.5 Ω ipF INPUT VOLTAGE RANGE Differential3 ± 20 ± 20 ± 20 V TMIN to TMAX –VS + 4 +V S – 2 –V S + 4 +V S – 2 –V S + 4 +V S – 2 V Common-Mode Rejection Ratio V CM = ± 10 V 76 88 80 88 86 94 dB TMIN to TMAX 76/76/76 84 80 84 86 90 dB VCM = ± 11 V 70 84 76 84 76 90 dB TMIN to TMAX 70/70/70 80 74 80 74 84 dB INPUT VOLTAGE NOISE 2 2 2 µV p-p 45 45 45 nV/ √Hz 22 22 22 nV/ √Hz 18 18 18 nV/ √Hz 16 16 16 nV/ √Hz INPUT CURRENT NOISE 0.01 0.01 0.01 pA/ √Hz OPEN-LOOP GAIN 150 400 200 400 200 400 V/mV 100/100/100 100 100 V/mV OUTPUT CHARACTERISTICS Current 25 25 25 mA POWER SUPPLY Rated Performance ± 15 ± 15 ± 15 V Operating Range 64.5 618 64.5 618 64.5 618 V NOTES 1Input Offset Voltage specifications are guaranteed after 5 minutes of operation at T A = +25°C. 2Bias Current specifications are guaranteed maximum at either input after 5 minutes of operation at T A = +25°C. For higher temperatures, the current doubles every 10 °C. 3Defined as voltage between inputs, such that neither exceeds ± 10 V from ground. 4Typically exceeding –14.1 V negative common-mode voltage on either input results in an output phase reversal. Specifications in boldface are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality le vels. All min and max specifications are guaranteed, although only those shown in boldface are tested on all production units. Specifications subject to change without notice. AD712–SPECIFICATIONS REV. B–2– (VS = 615 V @ TA = +258C unless otherwise noted)

REV. B –3– ABSOLUTE MAXIMUM RATINGS 1 Internal Power Dissipation 2 Operating Temperature Range NOTES 1Stresses above those listed under Absolute Maximum Ratings may cause perma- nent 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. 2Thermal Characteristics: 8-Lead Plastic Package: θJA = 165°C/Watt 8-Lead Cerdip Package: θJC = 22°C/Watt; θJA = 110°C/Watt 8-Lead Metal Can Package: θJC = 65°C/Watt; θJA = 150°C/Watt 8-Lead SOIC Package: θJA = 100°C 3For supply voltages less than ± 18 V, the absolute maximum input voltage is equal to the supply voltage. ORDERING GUIDE Temperature Package Package Model Range Description Option AD712ACHIPS –40 °C to +85°C Bare Die AD712AH –40 °C to +85°C 8-Lead Metal Can H-08A AD712AQ –40 °C to +85°C 8-Lead Ceramic DIP Q-8 AD712BH –40 °C to +85°C 8-Lead Metal Can H-08A AD712BQ –40 °C to +85°C 8-Lead Ceramic DIP Q-8 AD712CH –40 °C to +85°C 8-Lead Metal Can H-08A AD712CN –40 °C to +85°C 8-Lead Plastic DIP N-8 AD712JN 0 °C to +70°C 8-Lead Plastic DIP N-8 AD712JR 0 °C to +70°C 8-Lead Plastic SOIC R-8 AD712JR-REEL 0 °C to +70°C 8-Lead Plastic SOIC R-8 AD712JR-REEL7 0 °C to +70°C 8-Lead Plastic SOIC R-8 AD712KN 0 °C to +70°C 8-Lead Plastic DIP N-8 AD712KR 0 °C to +70°C 8-Lead Plastic SOIC R-8 AD712KR-REEL 0 °C to +70°C 8-Lead Plastic SOIC R-8 AD712KR-REEL7 0 °C to +70°C 8-Lead Plastic SOIC R-8 AD712SCHIPS –55 °C to +125°C Bare Die AD712SQ –55 °C to +125°C 8-Lead Ceramic DIP Q-8 AD712SQ/883B –55 °C to +125°C 8-Lead Ceramic DIP Q-8 AD712TQ –55 °C to +125°C 8-Lead Ceramic DIP Q-8 AD712TQ/883B –55 °C to +125°C 8-Lead Ceramic DIP Q-8 METALIZATION PHOTOGRAPH Dimensions shown in inches and (mm). Contact factory for latest dimensions.

Figure 35. ADC Input Unity Gain Buffer Recovery Times

1 C 1 UP TO

Figure 36. Circuit for Driving a Large Capacitive Load Figure 37. Transient Response R L = 2 kΩ , CL = 500 pF flowing through these resistors will also generate an offset voltage. rate must be fast as well as symmetrical to minimize distortion. will dictate the frequency response of the filter. minimize both dc and ac errors in all active filter applications.

REV. B –15– OUTLINE DIMENSIONS Dimensions shown in inches and (mm). Mini-DIP (N-8) TO-99 (H-08A) Cerdip (Q-8) SOIC (R-8) 0.390 (9.91) 0.250 (6.35) PIN 1 SEATING PLANE0.018 60.003 (0.460 60.081) 0.035 60.01 (0.890 60.25)0.165 60.01 4.19 60.25 0.18 60.01 (4.57 60.76) 0.033 (0.84) NOM 0.100 (2.54) TYP 0.125 (3.18) MIN 0.300 (7.62) REF 0.011 60.003 (0.204 60.081) 0.195 (4.95) 0.115 (2.93) 0.310 (7.87) 158 0.500 (12.70) MIN0.185 (4.70) 0.165 (4.19) REFERENCE PLANE 0.019 (0.48) 0.016 (0.41) 0.021 (0.53) 0.016 (0.41) INSULATION 0.05 (1.27) MAX 0.040 (1.01) MAX BASE & SEATING PLANE 0.335 (8.50) 0.305 (7.75) 0.370 (9.40) 0.335 (8.50) 0.034 (0.86) 0.028 (0.71) 0.045 (1.1) 0.020 (0.51) 2 8 0.200 (5.1) TYP 0.100 (2.54) BSC

458 BSC

0.310 (7.87) 0.220 (5.59) PIN 1 0.005 (0.13) MIN 0.055 (1.35) MAX SEATING PLANE0.014 (0.36) 0.023 (0.58) 0.200 (5.08) MAX 0.150 (3.81) MIN 0.030 (0.76) 0.070 (1.78) 0.125 (3.18) 0.200 (5.08) 0.100 (2.54) BSC 0.015 (0.38) 0.060 (1.52) 0.405 (10.29) MAX 158 0.220 (5.59) 0.310 (7.87) 0.008 (0.20) 0.015 (0.38) 0.25R (0.64) 0.1968 (5.00) 0.1890 (4.80) 0.1574 (4.00) 0.1497 (3.80) 0.2440 (6.20) 0.2284 (5.80) PIN 1 SEATING PLANE 0.0098 (0.25) 0.0040 (0.10) 0.020 (0.51) 0.013 (0.33) 0.0688 (1.75) 0.0532 (1.35) 0.0500 (1.27) BSC 0.0098 (0.25) 0.0075 (0.19) 0.050 (1.27) 0.016 (0.40) 0.0196 (0.50) 0.0099 (0.25)x 458 C1020c–1–4/98PRINTED IN U.S.A.