Data Sheet
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
High Voltage, Bidirectional
Current Shunt Monitor
AD8210
FUNCTIONAL BLOCK DIAGRAM
V
SUPPLY
I
S
R
S
+IN
–IN
V+
V
S
AD8210
LOAD
V
REF
1
G = +20
VOUT
APPLICATIONS
Current sensing
Motor controls
Transmission controls
Diesel injection controls
Engine management
Suspension controls
Vehicle dynamic controls
DC-to-dc converters
GND
V
REF
2
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. The 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.
Rev. E
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.
Trademarks and registered trademarks are the property of their respective owners.
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05147-001
AD8210
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
ESD Caution .................................................................................. 4
Pin Configuration and Function Descriptions ............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ...................................................................... 10
Data Sheet
Modes of Operation ....................................................................... 11
Unidirectional Operation .......................................................... 11
Bidirectional Operation............................................................. 11
Input Filtering ................................................................................. 13
Applications Information .............................................................. 14
High-Side Current Sense with a Low-Side Switch ................. 14
High-Side Current Sense with a High-Side Switch ............... 14
H-Bridge Motor Control ........................................................... 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 15
Automotive Products ................................................................. 15
REVISION HISTORY
9/2017—Rev. D to Rev. E
Change to Ordering Guide ............................................................ 15
6/2013—Rev. C to Rev. D
Added Automotive Information (Throughout) ........................... 1
Changes to Equation 1 ................................................................... 13
Added Automotive Products Section .......................................... 15
2/2012—Rev. B to Rev. C
Changes to Ordering Guide .......................................................... 15
5/2009—Rev. A to Rev. B
Changes to Ordering Guide .......................................................... 15
4/07—Rev. 0 to Rev. A
Changes to Features ..........................................................................1
Changes to Input Section .................................................................3
Updated Outline Dimensions ....................................................... 15
4/2006—Revision 0: Initial Version
Rev. E | Page 2 of 15
Data Sheet
SPECIFICATIONS
T
A
= operating temperature range, V
S
= 5 V, unless otherwise noted.
Table 1.
Parameter
GAIN
Initial
Accuracy
Accuracy Over Temperature
Gain Drift
VOLTAGE OFFSET
Offset Voltage (RTI)
Over Temperature (RTI)
Offset Drift
INPUT
Input Impedance
Differential
Common Mode
Common-Mode Input Voltage Range
Differential Input Voltage Range
Common-Mode Rejection
AD8210 SOIC
1
Min
Typ
Max
20
±0.5
±0.7
20
±1.0
±1.8
±8.0
Unit
V/V
%
%
ppm/°C
mV
mV
µV/°C
Conditions
AD8210
25°C, V
O
≥ 0.1 V dc
T
A
25°C
T
A
2
5
1.5
−2
100
80
80
250
120
95
80
+65
kΩ
MΩ
kΩ
V
mV
dB
dB
dB
dB
V
Ω
kHz
V/µs
µV p-p
nV/√Hz
V common mode > 5 V
V common mode < 5 V
Common mode, continuous
Differential
2
T
A
, f = dc, V
CM
> 5 V
T
A
, f = dc to 100 kHz
3
, V
CM
< 5 V
T
A
, f = 100 kHz
3
, V
CM
> 5 V
T
A
, f = 40 kHz
3
, V
CM
> 5 V
R
L
= 25 kΩ
OUTPUT
Output Voltage Range
Output Impedance
DYNAMIC RESPONSE
Small Signal −3 dB Bandwidth
Slew Rate
NOISE
0.1 Hz to 10 Hz, RTI
Spectral Density, 1 kHz, RTI
OFFSET ADJUSTMENT
Ratiometric Accuracy
4
Accuracy, RTO
Output Offset Adjustment Range
V
REF
Input Voltage Range
V
REF
Divider Resistor Values
POWER SUPPLY, V
S
Operating Range
Quiescent Current Over Temperature
Power Supply Rejection Ratio
TEMPERATURE RANGE
For Specified Performance
1
2
0.05
2
450
3
7
70
0.499
0.05
0.0
24
4.5
80
−40
4.9
32
5.0
0.501
±0.6
4.9
V
S
40
5.5
2
V/V
mV/V
V
V
kΩ
V
mA
dB
°C
Divider to supplies
Voltage applied to V
REF
1 and V
REF
2 in parallel
V
S
= 5 V
V
CM
> 5 V
5
+125
T
MIN
to T
MAX
= −40°C to +125°C.
Differential input voltage range = ±125 mV with half-scale output offset.
3
Source imbalance < 2 Ω.
4
The offset adjustment is ratiometric to the power supply when V
REF
1 and V
REF
2 are used as a divider between the supplies.
5
When the input common mode is less than 5 V, the supply current increases. This can be calculated with the following formula: I
S
= −0.7 (V
CM
) + 4.2 (see Figure 21).
Rev. E | Page 3 of 15
AD8210
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage
Continuous Input Voltage (V
CM
)
Reverse Supply Voltage
ESD Rating
HBM (Human Body Model)
CDM (Charged Device Model)
Operating Temperature Range
Storage Temperature Range
Output Short-Circuit Duration
Rating
12.5 V
−5 V to +68 V
0.3 V
±4000 V
±1000 V
−40°C to +125°C
−65°C to +150°C
Indefinite
Data Sheet
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
ESD CAUTION
Rev. E | Page 4 of 15
Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
–IN
1
GND
2
V
REF
2
3
8
AD8210
+IN
V
REF
1
AD8210
7
NC = NO CONNECT
Figure 2. Pin Configuration
1
2
8
7
6
05147-003
6
V+
TOP VIEW
NC
4
(Not to Scale)
5
OUT
3
5
Figure 3. Metallization Diagram
Table 3. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
−IN
GND
V
REF
2
NC
OUT
V+
V
REF
1
+IN
X
−443
−479
−466
+466
+501
+475
+443
Y
+584
+428
−469
−537
−95
+477
+584
Rev. E | Page 5 of 15
05147-002
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