Datasheet AD8210 (Analog Devices)

High Voltage, Bidirectional Current Shunt Monitor Data Sheet AD8210 FEATURES FUNCTIONAL BLOCK DIAGRAM ±4000 V HBM ESD VSUPPLY IS High common-mode voltage range −2 V to +65 V operating RS −5 V to +68 V survival +IN –IN Buffered output voltage V+ 5 mA output drive capability VS Wide operating temperature range: −40°C to +125°C Ratiometric half-scale output offset AD8210 Excellent ac and dc performance LOAD 1 µV/°C typical offset drift 10 ppm/°C typical gain drift VREF1 120 dB typical CMRR at dc 80 dB typical CMRR at 100 kHz Available in 8-lead SOIC G = +20 VOUT Qualified for automotive applications APPLICATIONS VREF2 Current sensing Motor controls GND Transmission controls
001
Diesel injection controls
05147-
Engine management
Figure 1.
Suspension controls Vehicle dynamic controls DC-to-dc converters GENERAL DESCRIPTION
The AD8210 is a single-supply, difference amplifier ideal for The output offset can be adjusted from 0.05 V to 4.9 V with amplifying small differential voltages in the presence of large a 5 V supply by using the VREF1 pin and the VREF2 pin. With the common-mode voltages. The operating input common-mode VREF1 pin attached to the V+ pin and the VREF2 pin attached to voltage range extends from −2 V to +65 V. The typical supply the GND pin, the output is set at half scale. Attaching both VREF1 voltage is 5 V. and VREF2 to GND causes the output to be unipolar, starting The AD8210 is offered in a SOIC package. The operating near ground. Attaching both VREF1 and VREF2 to V+ causes the temperature range is −40°C to +125°C. output to be unipolar, starting near V+. Other offsets can be obtained by applying an external voltage to VREF1 and VREF2. Excellent ac and dc performance over temperature keep errors in the measurement loop to a minimum. Offset drift and gain drift are guaranteed to a maximum of 8 µV/°C and 20 ppm/°C, respectively.
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Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION MODES OF OPERATION UNIDIRECTIONAL OPERATION Ground Referenced Output V+ Referenced Output BIDIRECTIONAL OPERATION External Referenced Output Splitting an External Reference Splitting the Supply INPUT FILTERING APPLICATIONS INFORMATION HIGH-SIDE CURRENT SENSE WITH A LOW-SIDE SWITCH HIGH-SIDE CURRENT SENSE WITH A HIGH-SIDE SWITCH H-BRIDGE MOTOR CONTROL OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS