AD746

双路精密， 500 ns建立， BiFET运算放大器 Dual Precision, 500 ns Settling, BiFET Op Amp

Product Details

The 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 12- or 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.

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

**APPLICATIONS**

* Dual Output Buffers for 12- and 14-Bit DACs

* Input Buffers for Precision ADCs, Wideband Preamplifiers and Low Distortion Audio Circuitry

### Features and Benefits

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AC PERFORMANCE

500 ns Settling to 0.01% for 10 V Step

75 V/µs Slew Rate

0.0001% Total Harmonic Distortion THD

13 MHz Gain Bandwidth

Internal Compensation for Gains of +2 or Greater 

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Single Version: AD744 

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DC PERFORMANCE

0.5 mV max Offset Voltage AD746B

10 µV/°C max Drift AD746B

175 V/mV min Open Loop Gain AD746B

2 µV p-p Noise, 0.1 Hz to 10 Hz

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Available in Plastic Mini-DIP, Cerdip and Surface Mount Packages

Available in Tape and Reel in Accordance with EIA-481A Standard