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a FEATURES AC PERFORMANCE 500 ns Settling to 0.01% for 10 V Step 75 V/ ␮s Slew Rate 0.0001% Total Harmonic Distortion (THD) 13 MHz Gain Bandwidth Internal Compensation for Gains of +2 or Greater

Dual Precision, 500 ns Settling, BiFET Op Amp AD746 CONNECTION DIAGRAM Plastic Mini-DIP (N) Cerdip (Q) and Plastic SOIC (R) Packages

DC PERFORMANCE 0.5 mV max Offset Voltage (AD746B) 10 ␮ V/؇C max Drift (AD746B) 175 V/mV min Open Loop Gain (AD746B) 2 ␮V p Noise, 0.1 Hz to 10 Hz Available in Plastic Mini-DIP, Cerdip and Surface Mount Packages Available in Tape and Reel in Accordance with EIA-481A Standard MIL-STD-883B Processing also Available Single Version: AD744 APPLICATIONS Dual Output Buffers for 12- and 14-Bit DACs Input Buffers for Precision ADCs, Wideband Preamplifiers and Low Distortion Audio Circuitry

The AD746 is available in three 8-pin packages: plastic mini DIP, hermetic cerdip and surface mount (SOIC). PRODUCT HIGHLIGHTS


The AD746 is a dual operational amplifier, consisting of two AD744 BiFET op amps on a single chip. These precision monolithic op amps offer excellent dc characteristics plus rapid settling times, high slew rates and ample bandwidths. In addition, the AD746 provides the close matching ac and dc characteristics inherent to amplifiers sharing the same monolithic die. The single pole response of the AD746 provides fast settling: 500 ns to 0.01%. This feature, combined with its high dc precision, makes it suitable for use as a buffer amplifier for 12or 14-bit DACs and ADCs. Furthermore, the AD746’s low total harmonic distortion (THD) level of 0.0001% and very close matching ac characteristics make it an ideal amplifier for many demanding audio applications. The AD746 is internally compensated for stable operation as a unity gain inverter or as a noninverting amplifier with a gain of 2 or greater. It is available in four performance grades. The AD746J is rated over the commercial temperature range of 0 to +70°C. The AD746A and AD746B are rated over the industrial temperature range of –40°C to +85°C. The AD746S is rated over the military temperature range of –55°C to +125°C and is available processed to MIL-STD-883B, Rev. C.

1. The AD746 offers exceptional dynamic response for high speed data acquisition systems. It settles to 0.01% in 500 ns and has a 100% tested minimum slew rate of 50 V/µs (AD746B). 2. Outstanding dc precision is provided by a combination of Analog Devices’ advanced processing technology, laser wafer drift trimming and well-matched ion-implanted JFETs. Input offset voltage, input bias current and input offset current are specified in the warmed-up condition and are 100% tested. 3. Differential and multichannel systems will benefit from the AD746’s very close matching of ac characteristics. Input offset voltage specs are fully tested and guaranteed to a maximum of 0.5 mV (AD746B). 4. The AD746 has very close, guaranteed matching of input bias current between its two amplifiers. 5. Unity gain stable version AD712 also available.

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.

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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