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Analog Devices Semiconductor Electronic Components Datasheet

AD8205 Datasheet

Single-Supply 42 V System Difference Amplifier

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AD8205 pdf
Data Sheet
FEATURES
Ideal for current shunt applications
High common-mode voltage range
−2 V to +65 V operating
−25 V to +75 V survival
Gain = 50 V/V
Wide operating temperature range:
−40°C to +125°C for Y and W grade
−40°C to +150°C for H 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
GENERAL DESCRIPTION
The AD8205 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 AD8205 is offered in an 8-lead SOIC package and rated for
operation from −40°C to +125°C for the Y and W grade
models. The H grade version of the AD8205 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
Single-Supply 42 V System
Difference Amplifier
AD8205
FUNCTIONAL BLOCK DIAGRAM
V+
6
+IN 8
–IN 1
5 OUT
AD8205
7 VREF1
NC 4
NC = NO CONNECT
2
GND
Figure 1.
3 VREF2
than 15 µV/°C, and gain drift is typically below 30 ppm/°C.
The output offset can be adjusted from 0.05 V to 4.8 V with a
5 V supply by using the VREF1 and VREF2 pins. With VREF1
attached to the V+ pin, and VREF2 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 VREF1 and VREF2 pins.
Rev.D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2004–2012 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

AD8205 Datasheet

Single-Supply 42 V System Difference Amplifier

No Preview Available !

AD8205 pdf
AD8205* Product Page Quick Links
Last Content Update: 11/01/2016
Comparable Parts
View a parametric search of comparable parts
Documentation
Application Notes
• AN-282: Fundamentals of Sampled Data Systems
• AN-669: Effectively Applying the AD628 Precision Gain
Block
• AN-671: Reducing RFI Rectification Errors in In-Amp
Circuits
Data Sheet
• AD8205: Single Supply 42 V System Difference Amplifier
Data Sheet
Technical Books
• A Designer's Guide to Instrumentation Amplifiers, 3rd
Edition, 2006
Tools and Simulations
• AD8205 SPICE Macro Model
Reference Materials
Technical Articles
• Auto-Zero Amplifiers
• Current Measurement in Solenoids for Automotive Control
Systems
• High-performance Adder Uses Instrumentation Amplifiers
• Input Filter Prevents Instrumentation-amp RF-Rectification
Errors
• The AD8221 - Setting a New Industry Standard for
Instrumentation Amplifiers
Design Resources
• AD8205 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
View all AD8205 EngineerZone Discussions
Sample and Buy
Visit the product page to see pricing options
Technical Support
Submit a technical question or find your regional support
number
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.


Part Number AD8205
Description Single-Supply 42 V System Difference Amplifier
Maker Analog Devices
Total Page 13 Pages
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