Dual, High Voltage,
Current Shunt Monitor
Data Sheet
AD8213
FEATURES
FUNCTIONAL BLOCK DIAGRAM
–IN2
+IN2 +IN1
–IN1
4000 V human body model (HBM) ESD
High common-mode input voltage range
−2 V to +65 V operating
−3 V to +68 V survival
Buffered output voltage
A2
A1
V+
Wide operating temperature range
−40°C to +125°C for Y grade
−40°C to +150°C for H grade
Excellent ac and dc performance
−10 ppm/°C typical gain drift
120 dB typical CMRR at dc
PROPRIETARY
OFFSET
PROPRIETARY
OFFSET
CIRCUITRY
CIRCUITRY
OUT2
OUT1
G = +20
G = +20
AD8213
Qualified for automotive applications
CF2
GND
CF1
APPLICATIONS
Figure 1.
High-side current sensing
Motor controls
Transmission controls
Diesel injection controls
Engine management
Suspension controls
Vehicle dynamic controls
DC to DC converters
GENERAL DESCRIPTION
The AD8213 is a dual-channel, precision current sense amplifier.
It features a set gain of 20 V/V, with a maximum 0.ꢀ5 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 +6ꢀ V, is independent of
the ꢀ V supply. The AD8213 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.
Special circuitry is devoted to output linearity being maintained
throughout the input differential voltage range of 0 mV to 2ꢀ0 mV,
regardless of the common-mode voltage present. The AD8213
also features additional pins that allow the user to low-pass filter
the input signal before amplifying, via an external capacitor to
ground. The AD8213 has an operating temperature range of −40°C
to +12ꢀ°C for the Y grade, −40°C to +1ꢀ0°C for the H grade and is
offered in a small 10-lead MSOP package.
Rev. D
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