ANALOG DEVICES AD 8213 YRMZ Datasheet

Current Shunt Monitor

Data Sheet

AD8213

Rev. C Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

Trademarks and registered trademarks are the property of their respective owners.

Technical Support www.analog.com

A2

G = +20

–IN2

+IN2

PROPRIETARY

OFFSET

CIRCUITRY

CF2

OUT2

A1

G = +20

–IN1

+IN1

PROPRIETARY

OFFSET

CIRCUITRY

CF1

GND

OUT1

V+

AD8213

06639-001

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

−40°C to +125°C for Y grade

−40°C to +150°C for H grade

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

Dual, High Voltage

FUNCTIONAL BLOCK DIAGRAM

Figure 1.

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 common­mode rejection from −2 V to +65 V, is independent of the 5 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.

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.

Special circuitry is devoted to output linearity being maintained
throughout the input differential voltage range of 0 mV to 250 m V,
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 +125°C for the Y grade, −40°C to +150°C for the H grade
and is offered in a small 10-lead MSOP package.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] ©2007–2013 Analog Devices, Inc. All rights reserved.

AD8213 Data Sheet

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

REVISION HISTORY

10/13—Rev. B to Rev. C

Changed Offset Voltage (RTI) Parameter from ±1 mV Max to

±1 mV Typ; Table 1 .......................................................................... 3

4/13—Rev. A to Rev. B

Added H Grade (Throughout) ....................................................... 1

Changes to Table 1 ............................................................................ 3

Added AD8213WH Temperature Range; Table 2 ........................ 4

Updated Outline Dimensions ....................................................... 14

Changes to Ordering Guide .......................................................... 14

5/09—Rev. 0 to Rev. A

Changes to Ordering Guide .......................................................... 14

5/07—Revision 0: Initial Version

Application Notes ........................................................................... 11

Output Linearity ......................................................................... 11

Low-Pass Filtering ...................................................................... 11

Applications Information .............................................................. 12

High-Side Current Sense with a Low-Side Switch ................. 12

High-Side Current Sensing ....................................................... 12

Low-Side Current Sensing ........................................................ 12

Bidirectional Current Sensing .................................................. 13

Outline Dimensions ....................................................................... 14

Ordering Guide .......................................................................... 14

Rev. C | Page 2 of 16

Data Sheet AD8213

Common Mode

V common mode > 5 V

5

MΩ

CF access to resistor for low-pass filter

Small Signal −3 dB Bandwidth

500 kHz

C

= 20 pF, no filter capacitor (CF)

C

= 20 pF, CF = 20 pF

Quiescent Current Over Temperature

VCM > 5 V, per amplifier1, total supply

°C

SPECIFICATIONS

T

= operating temperature range, VS = 5 V, RL = 25 kΩ (RL is the output load resistor), unless otherwise noted.

OPR

Table 1.

Parameter Test Conditions/Comments Min Typ Max Unit
GAIN

Initial 20 V/V

Accuracy VO ≥ 0.1 V dc ±0.25 %
Accuracy Over Temperature T

OPR

Gain vs. Temperature 0 −10 −25

VOLTAGE OFFSET

Offset Voltage (RTI) 25°C ±1 mV
Over Temperature (RTI) T
Offset Drift T

±2.2 mV

OPR

±12

OPR

INPUT

Input Impedance

Differential 5 kΩ

V common mode < 5 V 3.5 kΩ
Common-Mode Input Voltage Range Common mode continuous −2 +65 V
Differential Input Voltage Range Differential input voltage 250 mV
Common-Mode Rejection T
T

, f = DC, VCM > 5 V (see Figure 5) 100 120 dB

OPR

, f = DC, VCM < 5 V (see Figure 5) 80 90 dB

OPR

OUTPUT

Output Voltage Range Low AD8213Y, AD8213WY 0.1 0.05 V
AD8213WH 0.15 V
Output Voltage Range High AD8213Y, AD8213WY 4.95 4.9 V
AD8213WH 4.88 V

Output Impedance
FILTER RESISTOR
DYNAMIC RESPONSE

±0.5 %

ppm/°C

µV/°C

2 Ω
18 20 22 kΩ

Slew Rate

NOISE

0.1 Hz to 10 Hz, RTI

Spectral Density, 1 kHz, RTI
POWER SUPPLY

Operating Range

OUT

OUT

4.5 V/µs

2.7 V/µs

7 µV p-p
70

nV/√Hz

4.5 5.5 V

current for two channels
AD8213Y, AD8213WY 2.5 3.75 mA
AD8213WH 4.5 mA
Power Supply Rejection Ratio AD8213Y, AD8213WY 76 dB

AD8213WH 74 dB
TEMPERATURE RANGE

For Specified Performance AD8213Y, AD8213WY −40 +125

°C

AD8213WH −40 +150

1

When the input common mode is less than 5 V, the supply current increases. This can be calculated by IS = −0.52(VCM) + 4.9 (see Figure 11).

Rev. C | Page 3 of 16

AD8213 Data Sheet

AD8213WH

−40°C to +150°C

ABSOLUTE MAXIMUM RATINGS

Table 2.

Parameter Rating

Supply Voltage 12.5 V
Continuous Input Voltage −3 V to +68 V
Reverse Supply Voltage −0.3 V
HBM (Human Body Model) ESD Rating ±4000 V
CDM (Charged Device Model) ESD Rating ±1000 V
Operating Temperature Range

AD8213Y, AD8213WY −40°C to +125°C

Storage Temperature Range −65°C to +150°C
Output Short-Circuit Duration Indefinite

Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.

ESD CAUTION

Rev. C | Page 4 of 16

Data Sheet AD8213

06639-002

1

2

10

9

3

8

4 7

5

6

–IN2

1

+IN2

2

GND

3

OUT2

4

CF2

5

–IN1

10

+IN1

9

V+

8

OUT1

7

CF1

6

AD8213

TOP VIEW

(Not to Scale)

06639-003

7

OUT1

394

−500

Output of the first channel.

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

Figure 3. Pin Configuration

Figure 2. Metallization Diagram

Table 3. Pin Function Descriptions

Pin No. Mnemonic X Y Description

1 −IN2 −401 677 Inverting input of the second channel.
2 +IN2 −401 510 Noninverting input of the second channel.
3 GND −401 −53 Ground.
4 OUT2 −394 −500 Output of the second channel.
5 CF2 −448 −768 Low-pass filter pin for the second channel.
6 CF1 448 −768 Low-pass filter pin for the first channel.

8 V+ 401 −61 Supply.
9 +IN1 401 510 Noninverting input of the first channel.
10 −IN1 401 677 Inverting input of the first channel.

Rev. C | Page 5 of 16