AD746

Features:

AC PERFORMANCE
500 ns Settling to 0.01% for 10 V Step
75 V/ms Slew Rate
0.0001% Total Harmonic Distortion (THD)
13 MHz Gain Bandwidth
Internal Compensation for Gains of +2 or Greater
DC PERFORMANCE
0.5 mV max Offset Voltage (AD746B)
10 V/8C max Drift (AD746B)
175 V/mV min Open Loop Gain (AD746B)
2 V p-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




Application

·Dual Output Buffers for 12- and 14-Bit DACs
·Input Buffers for Precision ADCs, Wideband Preamplifiers and Low Distortion Audio Circuitry




Pinout








Specifications

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±18 V
Internal Power Dissipation² . . . . . . . . . . . . . . . . . . . . . 500 mW
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±VS
Output Short Circuit Duration
(For One Amplifier) . . . . . . . . . . . . . . . . . . . . . . . Indefinite
Differential Input Voltage . . . . . . . . . . . . . . . . . . +VS and VS
Storage Temperature Range (Q) . . . . . . . . . . 65 to +150
Storage Temperature Range (N, R) . . . . . . . . 65 to +125
Operating Temperature Range
AD746J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to +70
AD746A/B . . . . . . . . . . . . . . . . . . . . . . . . . . 40 to +85
AD746S . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to +125
Lead Temperature Range
(Soldering 60 seconds) . . . . . . . . . . . . . . . . . . . . . . . +300
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .






Description

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 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 to +85. The AD746S is rated over the military temperature range of 55 to +125 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).