Datasheet AD8211 (Analog Devices)

High Voltage, Current Shunt Monitor Data Sheet AD8211 FEATURES FUNCTIONAL BLOCK DIAGRAM Qualified for automotive applications VIN+ VIN– ±4000 V human body model (HBM) electrostatic discharge (ESD) High common-mode input voltage range: −2 V to +65 V Continuous input voltage range: −3 V to +68 V Buffered output voltage A1 V+ Wide operating temperature range PROPRIETARY 5-lead SOT: −40°C to +125°C OFFSET Excellent ac and dc performance CIRCUITRY 5 µV/°C typical offset drift OUT −13 ppm/°C typical gain vs. temperature G = +20 120 dB typical common-mode rejection ratio (CMRR) at dc AD8211 APPLICATIONS
001
GND High-side current sensing
06824- Figure 1.
Motor controls Transmission controls Engine management Suspension controls Vehicle dynamic controls DC-to-dc converters GENERAL DESCRIPTION
The AD8211 is a high voltage, precision current shunt amplifier. It Special circuitry is devoted to output linearity being maintained features a set gain of 20 V/V, with a typical ±0.35% gain error throughout the input differential voltage range of 0 mV to 250 mV, over the entire temperature range. The buffered output voltage regardless of the common-mode voltage present. The AD8211 directly interfaces with any typical converter. Excel ent common- has an operating temperature range of −40°C to +125°C and is mode rejection from −2 V to +65 V is independent of the 5 V offered in a small 5-lead SOT package. supply. The AD8211 performs unidirectional current measurements across a shunt resistor in a variety of industrial and automotive applications, such as motor control, solenoid control, or battery management.
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Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATION NOTES OUTPUT LINEARITY APPLICATIONS INFORMATION HIGH-SIDE CURRENT SENSE WITH A LOW-SIDE SWITCH HIGH-SIDE CURRENT SENSING LOW-SIDE CURRENT SENSING OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS