High Voltage,
Current Shunt Monitor
Data Sheet
AD8215
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
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FEATURES
?000 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癈 to +125癈
Excellent ac and dc performance
6 礦/癈 typical offset drift
8 ppm/癈 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
Qualified for automotive applications
FUNCTIONAL BLOCK DIAGRAM
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 ?.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癈 to +125癈 and is
offered in a small 8-lead SOIC_N package.
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