GENERAL DESCRIPTION
The AD22050 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 commonmode voltage.
   
FEATURES
    Gain of x20. 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 kΩ 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