High Voltage,
Current Shunt Monitor
Data Sheet
AD8215
Rev. B Document Feedback
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FEATURES
±4000 V human body model (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: −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
Qualified for automotive applications
APPLICATIONS
High-side current sensing
Motor controls
Transmission controls
Engine management
Suspension controls
Vehicle dynamic controls
DC to dc converters
FUNCTIONAL BLOCK DIAGRAM
07203-001
IN
V+
OUT
G = +20
AD8215
A1
PROPRIETARY
OFFSET
CIRCUITRY
IN–
GND
Figure 1.
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.
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 package.
