High Voltage, Bidirectional
Current Shunt Monitor
Data Sheet
AD8210
Rev. D Document Feedback
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FEATURES
±4000 V HBM ESD
High common-mode voltage range
−2 V to +65 V operating
−5 V to +68 V survival
Buffered output voltage
5 mA output drive capability
Wide operating temperature range: −40°C to +125°C
Ratiometric half-scale output offset
Excellent ac and dc performance
1 μV/°C typical offset drift
10 ppm/°C typical gain drift
120 dB typical CMRR at dc
80 dB typical CMRR at 100 kHz
Available in 8-lead SOIC
Qualified for automotive applications
APPLICATIONS
Current sensing
Motor controls
Transmission controls
Diesel injection controls
Engine management
Suspension controls
Vehicle dynamic controls
DC-to-dc converters
FUNCTIONAL BLOCK DIAGRAM
LOAD
AD8210
VOUT
G=+20
SUPPL Y
I
S
R
S
+IN –IN
V
S
V+
V
REF
1
V
REF
2
GND
05147-001
Figure 1.
GENERAL DESCRIPTION
The AD8210 is a single-supply, difference amplifier ideal for
amplifying small differential voltages in the presence of large
common-mode voltages. The operating input common-mode
voltage range extends from −2 V to +65 V. e typical supply
voltage is 5 V.
The AD8210 is offered in a SOIC package. The operating
temperature range is −40°C to +125°C.
Excellent ac and dc performance over temperature keep errors
in the measurement loop to a minimum. Offset drift and gain
drift are guaranteed to a maximum of 8 μV/°C and 20 ppm/°C,
respectively.
The output offset can be adjusted from 0.05 V to 4.9 V with
a 5 V supply by using the V
REF
1 pin and the V
REF
2 pin. With the
V
REF
1 pin attached to the V+ pin and the V
REF
2 pin attached to
the GND pin, the output is set at half scale. Attaching both V
REF
1
and V
REF
2 to GND causes the output to be unipolar, starting
near ground. Attaching both V
REF
1 and V
REF
2 to V+ causes the
output to be unipolar, starting near V+. Other offsets can be
obtained by applying an external voltage to V
REF
1 and V
REF
2.
