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AD8205WYRZ View Datasheet(PDF) - Aavid Thermalloy, LLC

Part Name
Description
Manufacturer
AD8205WYRZ
AAVID
Aavid Thermalloy, LLC AAVID
AD8205WYRZ Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
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
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
www.analog.com
Fax: 781.461.3113 ©2004–2012 Analog Devices, Inc. All rights reserved.
 

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