GENERAL DESCRIPTION

The AD22057 is a single-supply difference amplifier for amplifying and low-pass filtering small differential voltages (typically 100 mV FS at a gain of 40) from sources having a large common mode voltage.

FEATURES

Gain of 320. Alterable from x1 to x160

Input CMR from Below Ground to 6x (VS – 1 V)

Output Span 20 mV to (VS – 0.2) V

1-, 2-, 3-Pole Low-Pass Filtering Available

Accurate Midscale Offset Capability

Differential Input Resistance 400 kΩ

Drives 1 kV Load to +4 V Using VS = +5 V

Supply Voltage: +3.0 V to +36 V

Transient Spike Protection and RFI Filters Included

Peak Input Voltage (40 ms): 60 V

Reversed Supply Protection: –34 V

Operating Temperature Range: –40°C to +125°C

APPLICATIONS

Current Sensing

Motor Control

Interface for Pressure Transducers, Position Indicators,

Strain Gages, and Other Low Level Signal Sources

Accelerometers

AD22057属于集成电路（IC） > 传感器和检测器接口。亚德诺半导体技术有限公司制造生产的AD22057传感器和检测器接口该系列产品可执行信号调节、数据转换、激励生成和/或各种将传感器或变送器机构连接到主机设备所需的其他功能。示例包括用于 CCD 图像传感器的控制器、用于 4-20 mA 接口和类似应用的电流变送器、超声变送器前端、惠斯通电桥接口等。