AD8205

Data Sheet FEATURES Ideal for current shunt applications High common-mode voltage range −2 V to +65 V operating −25 V to +75 V survival Gain = 50 V/V Wide operating temperature range: −40°C to +125°C for Y and W grade −40°C to +150°C for H grade Bidirectional operation Available in 8-lead SOIC Qualified for automotive applications EXCELLENT AC AND DC PERFORMANCE 15 µV/°C offset drift 30 ppm/°C gain drift 80 dB CMRR dc to 20 kHz APPLICATIONS High-side current sensing in: Motor controls Transmission controls Diesel injection controls Engine management Suspension controls Vehicle dynamic controls DC-to-dc converters GENERAL DESCRIPTION The AD8205 is a single-supply difference amplifier for amplifying small differential voltages in the presence of large common-mode voltages. The operating input common-mode voltage range extends from −2 V to +65 V. The typical singlesupply voltage is 5 V. The AD8205 is offered in an 8-lead SOIC package and rated for operation from −40°C to +125°C for the Y and W grade models. The H grade version of the AD8205 is rated from −40°C to +150°C. Excellent dc performance over temperature keeps errors in the measurement loop to a minimum. Offset drift is typically less Single-Supply 42 V System Difference Amplifier AD8205 FUNCTIONAL BLOCK DIAGRAM V+ 6 +IN 8 –IN 1 5 OUT AD8205 7 VREF1 04315-0-001 NC 4 NC = NO CONNECT 2 GND Figure 1. 3 VREF2 than 15 µV/°C, and gain drift is typically below 30 ppm/°C. The output offset can be adjusted from 0.05 V ...