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AD8212 Fiches technique(PDF) 1 Page - Analog Devices

No de pièce AD8212
Description  High Voltage Current Shunt Monitor
Download  8 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD8212 Fiches technique(HTML) 1 Page - Analog Devices

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High Voltage
Current Shunt Monitor
Preliminary Technical Data
AD8212
Rev. PrA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
©2006 Analog Devices, Inc. All rights reserved.
FEATURES
High common-mode voltage range
7 V to +65 V operating (no outside pass transistor)
7 V to >500 V survival (with outside pass transistor)
Adjustable gain
Bidirectional current measurement
Wide operating temperature range
Die: −40°C to +150°C
8-lead SOIC: −40°C to +125°C
Available in SOIC and die form
APPLICATIONS
High-side current sensing
Motor controls
Battery monitoring
Hybrid vehicle control
Diesel injection controls
Vehicle dynamic controls
Dc-to-dc converters
FUNCTIONAL BLOCK DIAGRAM
LOAD
AD8212
IOUT
OFFSET
ALPHA
VPLUS
IS
RS
+IN
–IN
+
99kΩ
COM
BIAS
RBIAS
ROUT
Figure 1.
GENERAL DESCRIPTION
The AD8212 is a self-biased current sense amplifier for level
shifting and amplifying small differential voltages in the
presence of common mode voltages exceeding 500 V1. The
AD8212 offers excellent accuracy and programmable gain
which can be set with a single resistor, making it ideal to use in
industrial, automotive , and consumer applications.
The AD8212 is offered in die and packaged form. The operating
temperature range for the die is 25°C higher (up to 150°C) than
that of the packaged part to enable the user to apply the
AD8212 in high temperature applications.
Excellent AC and DC performance over temperature keep
errors in the measurement loop to a minimum. Offset drift is
typically below 5 uV/ °C, and the gain drift is typically below
50 ppm/°C.
1 Depending upon Vce breakdown voltage of pass transistor


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