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a FEATURES Enhanced Replacements for LF412 and TL082 AC PERFORMANCE Settles to ؎0.01% in 1.0 ms 16 V/␮s min Slew Rate (AD712J) 3 MHz min Unity Gain Bandwidth (AD712J)

Dual Precision, Low Cost, High Speed, BiFET Op Amp AD712 CONNECTION DIAGRAMS TO-99 (H) Package

Plastic Mini-Dip (N) Package SOIC (R) Package and Cerdip (Q) Package

DC PERFORMANCE 0.30 mV max Offset Voltage: (AD712C) 5 ␮V/؇C max Drift: (AD712C) 200 V/mV min Open-Loop Gain (AD712K) 4 ␮V p max Noise, 0.1 Hz to 10 Hz (AD712C) Surface Mount Available in Tape and Reel in Accordance 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

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 MILSTD-883B, 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 environmental and physical tests. The AD712 is available in an 8-pin 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 100% tested minimum slew rate of 16 V/µs. Thus this device is ideal for applications such as DAC and ADC buffers which require a combination of superior ac and dc performance. 4. The AD712 has a guaranteed and tested maximum voltage noise of 4 µV p, 0.1 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.

REV. A 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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703


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