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AD8206WYRZ-RL

P1-P3P4-P6P7-P9P10-P12P13-P14
High Common-Mode Voltage,
Bidirectional Current Shunt Amplifier
Data Sheet
AD8206
FEATURES
Ideal for current shunt applications
High common-mode voltage range
−2 V to +65 V operating
−25 V to +75 V survival
Gain = 20
Wide operating temperature range
−40°C to +125°C for Y grade and WY grade
−40°C to +150°C for WH grade
Bidirectional operation
Available in 8-lead SOIC
Qualified for automotive applications
EXCELLENT AC AND DC PERFORMANCE
15 µV/°C offset drift
30 ppm/°C gain drift
80 dB CMRR dc to 20 kHz
APPLICATIONS
High-side current sensing in
Motor controls
Transmission controls
Diesel-injection controls
Engine management
Suspension controls
Vehicle dynamic controls
DC-to-dc converters
FUNCTIONAL BLOCK DIAGRAM
04953-001
AD8206
8
1
4
2
3
7
5
6
+IN
–IN
NC
NC = NO CONNECT
GND
V+
OUT
V
REF
1
V
REF
2
Figure 1.
GENERAL DESCRIPTION
The AD8206 is a single-supply difference amplifier 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 single-supply voltage is 5 V.
The AD8206 is offered in an 8-lead SOIC package. The Y grade
and WY grade models are rated for operation from −40°C to
+125°C. The WH grade is rated from −40°C to +150°C.
Excellent DC performance over temperature keeps errors in the
measurement loop to a minimum. Offset drift is typically less
than 15 µV/°C, and gain drift is typically below 30 ppm/°C.
The output offset can be adjusted from 0.08 V to 4.7 V with a
5 V supply by using the V
REF
1 and V
REF
2 pins. With V
REF
1
attached to the V+ pin, and V
REF
2 attached to the GND pin, the
output is set at half scale. Attaching both pins to GND causes
the output to be unipolar, starting near ground. Attaching both
pins to V+ causes the output to be unipolar starting near V+.
Other offsets can be obtained by applying an external voltage to
the V
REF
1 and V
REF
2 pins.
Rev. C Document Feedback
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2005–2014 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
AD8206* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
COMPARABLE PARTS
View a parametric search of comparable parts.
DOCUMENTATION
Application Notes
• AN-669: Effectively Applying the AD628 Precision Gain
Block
Data Sheet
• AD8206: High Common-Mode Voltage, Bidirectional
Current Shunt Amplifier Data Sheet
Technical Books
• A Designer's Guide to Instrumentation Amplifiers, 3rd
Edition, 2006
TOOLS AND SIMULATIONS
• AD8206 SPICE Macro Model
REFERENCE MATERIALS
Technical Articles
• Auto-Zero Amplifiers
• Current Measurement in Solenoids for Automotive
Control Systems
• High-performance Adder Uses Instrumentation Amplifiers
DESIGN RESOURCES
• AD8206 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
DISCUSSIONS
View all AD8206 EngineerZone Discussions.
SAMPLE AND BUY
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TECHNICAL SUPPORT
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number.
DOCUMENT FEEDBACK
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AD8206 Data Sheet
Rev. C | Page 2 of 13
TABLE OF CONTENTS
Features .............................................................................................. 1
Excellent AC and DC Performance ................................................ 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 5
ESD Caution .................................................................................. 5
Pin Configuration and Function Descriptions ............................. 6
Typical Performance Characteristics ............................................. 7
Theory of Operation ........................................................................ 9
Output Offset Adjustment ............................................................. 10
Unidirectional Operation .......................................................... 10
Ground Referenced Output ...................................................... 10
V+ Referenced Output .............................................................. 10
Bidirectional Operation ............................................................. 10
External Referenced Output ..................................................... 11
Splitting the Supply .................................................................... 11
Splitting an External Reference ................................................ 11
Applications Information .............................................................. 12
High-Side Current Sense with a Low-Side Switch ................. 12
High-Side Current Sense with a High-Side Switch ............... 12
Outline Dimensions ....................................................................... 13
Ordering Guide .......................................................................... 13
Automotive Products ................................................................. 13
REVISION HISTORY
11/14—Rev. B to Rev. C
Changes to Pin Configuration and Function Descriptions
Section ................................................................................................ 6
Changed Applications Section to Applications Information
Section .............................................................................................. 12
11/12—Rev. A to Rev. B
Added WH Grade Models ................................................. Universal
Change to Product Title, Features Section, and General
Description Section .......................................................................... 1
Changes to Table 1 ............................................................................ 3
Added Y Grade and WY Grade Parameter, Table 2 and WH
Grade Parameter, Table 2 ................................................................. 5
Changes to Theory of Operation Section ...................................... 9
Updated Outline Dimensions ....................................................... 13
Changes to Ordering Guide .......................................................... 13
5/10—Rev. 0 to Rev. A
Removed Die Form ............................................................ Universal
Changes to Features, General Description Sections ..................... 1
Changes to Output Resistance ......................................................... 3
Changes to Table 2 ............................................................................. 4
Changes to Theory of Operation Section....................................... 8
Changes to Ordering Guide .......................................................... 12
Added Automotive Products Section .......................................... 12
7/05—Revision 0: Initial Version
P1-P3P4-P6P7-P9P10-P12P13-P14

AD8206WYRZ-RL

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Current Sense Amplifiers SGL-Supply 42V Systm
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