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AD744
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MFG:AD Package Cooled:CAN D/C:09+

AD7 Series Datasheet download

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Part Number: AD744

MFG: AD

Package Cooled: CAN

D/C: 09+

Description: The AD744 is a fast-settling, precision, FET input, monolithic operational amplifier. It offers the excellent dc charac...

AD744 General Description

The AD744 is a fast-settling, precision, FET input, monolithic operational amplifier. It offers the excellent dc characteristics of the AD711 BiFET family with enhanced settling, slew rate, and bandwidth. The AD744 also offers the option of using custom compensation to achieve exceptional capacitive load drive capability.

The single-pole response of the AD744 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-bit, 14-bit or 16-bit DACs and ADCs. Furthermore, the AD744's low total harmonic distortion (THD) level of 0.0003% and gain bandwidth product of 13 MHz make it an ideal amplifier for demanding audio applications. It is also an excellent choice for use in active filters in 12-bit, 14-bit and 16-bit data acquisition systems.

The AD744 is internally compensated for stable operation as a unity gain inverter or as a noninverting amplifier with a gain of two or greater. External compensation may be applied to the AD744 for stable operation as a unity gain follower. External compensation also allows the AD744 to drive 1000 pF capacitive loads, slewing at 10 V/µs with full stability.

Alternatively, external decompensation may be used to increase the gain bandwidth of the AD744 to over 200 MHz at high gains. This makes the AD744 ideal for use as ac preamps in digital signal processing (DSP) front ends.

The AD744 is available in five performance grades. The AD744J and AD744K are rated over the commercial temperature range of 0 to +70. The AD744A and AD744B are rated over the industrial temperature range of 40 to +85. The AD744T is rated over the military temperature range of 55 to +125 and is available processed to MIL-STD-883B, Rev. C.

The AD744 is available in an 8-lead plastic mini-DIP, 8-lead small outline, 8-lead cerdip or TO-99 metal can.

AD744 Maximum Ratings

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V
Internal Power Dissipation² . . . . . . . . . . . . . . . . . . . . 500 mW
Input Voltage3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V
Output Short Circuit Duration . . . . . . . . . . . . . . . . Indefinite
Differential Input Voltage . . . . . . . . . . . . . . . . . . +VS and VS
Storage Temperature Range (Q, H) . . . . . . 65 to +150
Storage Temperature Range (N, R) . . . . . . . 65 to +125
Operating Temperature Range
AD744J/K . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +70
AD744A/B . . . . . . . . . . . . . . . . . . . . . . . . . 40 to +85
AD744S/T . . . . . . . . . . . . . . . . . . . . . . . . 55 to +125
Lead Temperature Range (Soldering 60 seconds) . . . . . 300

AD744 Features

AC PERFORMANCE
500 ns Settling to 0.01% for 10 V Step
1.5 s Settling to 0.0025% for 10 V Step
75 V/s Slew Rate
0.0003% Total Harmonic Distortion (THD)
13 MHz Gain Bandwidth Internal Compensation
>200 MHz Gain Bandwidth (G = 1000) External Decompensation
>1000 pF Capacitive Load Drive Capability with 10 V/s Slew Rate External Compensation
DC PERFORMANCE
0.5 mV max Offset Voltage (AD744B)
10 V/C max Drift (AD744B)
250 V/mV min Open-Loop Gain (AD744B)
Available in Plastic Mini-DIP, Plastic SOIC, Hermetic Cerdip, Hermetic Metal Can Packages and Chip Form
Surface Mount (SOIC) Package Available in Tape and Reel in Accordance with EIA-481A Standard

AD744 Typical Application

Output Buffers for 12-Bit, 14-Bit and 16-Bit DACs, ADC Buffers, Cable Drivers, Wideband Preamplifiers and Active Filters

AD744 Connection Diagram

AD744 datasheet

AD744
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Datasheet: AD744
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