AD8215 Datasheet, PDF (1/16 Pages) Analog Devices – High Voltage, Curren Shunt Monitor

FEATURES
±4000 V HBM ESD
High common-mode voltage range
−2 V to +65 V operating
−3 V to +68 V survival
Buffered output voltage
Wide operating temperature range
8-Lead SOIC_N: −40°C to +125°C
Excellent ac and dc performance
6 μV/°C typical offset drift
−8 ppm/°C typical gain drift
120 dB typical CMRR at dc
APPLICATIONS
High-side current sensing
Motor controls
Transmission controls
Engine management
Suspension controls
Vehicle dynamic controls
DC-to-dc converters
GENERAL DESCRIPTION
The AD8215 is a high voltage, precision current shunt monitor. It
features a set gain of 20 V/V, with a maximum ±0.3% gain error
over the entire temperature range. The buffered output voltage
directly interfaces with any typical converter. Excellent common-
mode rejection from −2 V to +65 V is independent of the 5 V
supply. The AD8215 performs unidirectional current
measurements across a shunt resistor in a variety of industrial
and automotive applications, such as motor controls, solenoid
controls, or battery management.
High Voltage,
Current Shunt Monitor
AD8215
FUNCTIONAL BLOCK DIAGRAM
IN+
IN–
A1
V+
PROPRIETARY
OFFSET
CIRCUITRY
G = +20
OUT
AD8215
GND
Figure 1.
Special circuitry is devoted to output linearity being maintained
throughout the input differential voltage range of 0 mV to 250 mV,
regardless of the common-mode voltage present. The AD8215
has an operating temperature range of −40°C to +125°C and is
offered in a small 8-lead SOIC_N package.
Rev. 0
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