GENERAL DESCRIPTION The AD8209 is a single-supply difference amplifier ideal for amplifying and low-pass filtering small differential voltages in the presence of a large common-mode voltage. The input common mode voltage range extends from −2 V to +45 V at a single +5 V supply. The AD8209 is qualified per AEC-Q100 specifications. The amplifier offers enhanced input overvoltage and ESD protection, and includes EMI filtering.

FEATURES
    ±8000 V HBM ESD for shunt-based applications
    AEC-Q100 qualified
    EMI filters included
    High common-mode voltage range
        −2 V to +45 V operating
        −24 V to +80 V survival
    Buffered output voltage
    Gain = 14 V/V
    Low-pass filter (single-pole or two-pole)
    Wide operating temperature range
        −40°C to +125°C for WB grade
        −40°C to +150°C for WH grade
    Excellent ac and dc performance
        ±1 mV voltage offset
        −5 ppm/°C typical gain drift
        80 dB CMRR minimum dc to 10 kHz
    Qualified for automotive applications
   
APPLICATIONS
    High-side current sensing
        Motor controls
        Solenoid controls
        Power management
    Low-side current sensing
    Diagnostic protection