AD8209

Data Sheet 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 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 commonmode 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. Automotive applications demand robust, precision components for improved system control. The AD8209 provides excellent ac and dc High Voltage, Precision Difference Amplifier AD8209 FUNCTIONAL BLOCK DIAGRAM VS A1 A2 EMI FILTER IN+ EMI FILTER + G=7 IN– EMI FILTER – AD8209 + G=2 – OUT 08461-001 GND Figure 1. performance, minimizing errors in the application. Typical offset and gain drift in the MSOP package are le...