PRODUCT DESCRIPTION

The AD626 is a low cost, true single-supply differential amplifier designed for amplifying and low-pass filtering small differential voltages from sources having a large common-mode voltage.

The AD626 can operate from either a single supply of +2.4 V to +10 V, or dual supplies of ±1.2 V to ±6 V. The input common-mode range of this amplifier is equal to 6 (+VS – 1 V) which provides a +24 V CMR while operating from a +5 V supply. Furthermore, the AD626 features a CMR of 90 dB typ.

FEATURES

Pin Selectable Gains of 10 and 100

True Single-Supply Operation

Single-Supply Range of +2.4 V to +10 V

Dual-Supply Range of ± 1.2 V to ± 6 V

Wide Output Voltage Range of 30 mV to 4.7 V

Optional Low-Pass Filtering

Excellent DC Performance

Low Input Offset Voltage: 500 μV Max

Large Common-Mode Range: 0 V to +54 V

Low Power: 1.2 mW (VS = +5 V)

Good CMR of 90 dB Typ

AC Performance

Fast Settling Time: 24 μs (0.01)

Includes Input Protection

Series Resistive Inputs (RIN = 200 kΩ)

RFI Filters Included

Allows 50 V Continuous Overload

APPLICATIONS

Current Sensing

Interface for Pressure Transducers, Position Indicators, Strain Gages, and Other Low Level Signal Sources