AD8213 Datasheet, PDF (1/16 Pages) Analog Devices – Dual, High Voltage Current 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
10-lead MSOP: −40°C to +125°C
Excellent ac and dc performance
3 μV/°C typical offset drift
−10 ppm/°C typical gain drift
120 dB typical CMRR at dc
APPLICATIONS
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 +65 V, is independent of the 5 V
supply. The AD8213 performs unidirectional current measure-
ments across a shunt resistor in a variety of industrial and
automotive applications, such as motor control, solenoid
control, or battery management.
Dual, High Voltage
Current Shunt Monitor
AD8213
FUNCTIONAL BLOCK DIAGRAM
–IN2
+IN2 +IN1
–IN1
A2
PROPRIETARY
OFFSET
CIRCUITRY
OUT2
G = +20
CF2
A1
V+
PROPRIETARY
OFFSET
CIRCUITRY
GND
Figure 1.
G = +20
OUT1
AD8213
CF1
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 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
−40ºC to +125ºC and is offered in a small 10-lead MSOP package.
Rev. 0
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