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AD8214 PDF даташит

Спецификация AD8214 изготовлена ​​​​«Analog Devices» и имеет функцию, называемую «High Voltage Current Shunt Comparator».

Детали детали

Номер произв AD8214
Описание High Voltage Current Shunt Comparator
Производители Analog Devices
логотип Analog Devices логотип 

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AD8214 Даташит, Описание, Даташиты
Data Sheet
FEATURES
Input-to-output response: <100 ns
High input common-mode voltage range
Operating: 5 V to 65 V
Survival: 0 V to 68 V
Current output
Hysteresis: 10 mV
Integrated 2.4 V regulator
Wide operating temperature range: –40°C to +125°C
8-lead MSOP package
Qualified for automotive applications
APPLICATIONS
Overcurrent protection
Motor controls
Transmission controls
Diesel injection controls
DC-to-DC converters
Power supplies
Batteries
Fast Response, High Voltage
Current Shunt Comparator
AD8214
FUNCTIONAL BLOCK DIAGRAM
VS 1
+IN 2
–IN 8
5 OUT
2.4V
REGULATOR
VREG 3
Figure 1.
6
GND
GENERAL DESCRIPTION
The AD8214 is a fast response, high common-mode voltage,
current shunt comparator. The device operates on the high side
rail of any DC current sensing application, provided the voltage
is between 5 V and 65 V. Internally, the AD8214 features a fast
comparator that is optimized for high side operation. An internal
Zener regulator powers the circuit with respect to the high side
DC rail. In addition, user access to this 2.4V regulator, allows
for setting a comparator threshold voltage via external resistors.
The AD8214 will compare the voltage across the shunt resistor
to this user-selected threshold, and the AD8214 output will change
states from low to high, indicating the current across the shunt
has crossed the threshold level.
The input to output response time of the AD8214 is typically
less than 100 ns. This makes the device optimal for overcurrent
protection in applications such as motor and solenoid control.
Built-in comparator hysteresis means that once the current
across the shunt falls back to a normal limit, the AD8214 output
will change states to its original level.
The AD8214 is available in an 8-lead MSOP package. The
operating temperature range is −40°C to +125°C, and the device
is fully qualified for automotive applications.
Rev. A
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.
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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 ©2006–2012 Analog Devices, Inc. All rights reserved.









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AD8214 Даташит, Описание, Даташиты
AD8214* Product Page Quick Links
Last Content Update: 11/01/2016
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Documentation
Application Notes
• AN-669: Effectively Applying the AD628 Precision Gain
Block
Data Sheet
• AD8214: Fast Response, High Voltage Current Shunt
Comparator Datasheet
Technical Books
• A Designer's Guide to Instrumentation Amplifiers, 3rd
Edition, 2006
Tools and Simulations
• AD8214 SPICE Macro Model
Reference Materials
Technical Articles
• Auto-Zero Amplifiers
• High-performance Adder Uses Instrumentation Amplifiers
Design Resources
• AD8214 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
View all AD8214 EngineerZone Discussions
Sample and Buy
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Technical Support
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frequently modified.









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AD8214 Даташит, Описание, Даташиты
AD8214
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
6/12—Rev. 0 to Rev. A
Changes to Product Title ..................................................................1
Changes to Features Section, and General Description
Section .................................................................................................1
Changes to Table 1.............................................................................3
Changes to Table 2.............................................................................4
Changes to Ordering Guide; Added Automotive Products
Section ...............................................................................................14
Updated Outline Dimensions ........................................................14
Data Sheet
Comparator Offset and Hysteresis........................................... 11
Setting the Input Threshold Voltage........................................ 11
Input-Referred Dynamic Error ................................................ 11
Applications..................................................................................... 12
Typical Setup and Calculations ................................................ 12
High Side Overcurrent Detection ............................................ 13
Outline Dimensions ....................................................................... 14
Ordering Guide .......................................................................... 14
Automotive Products ................................................................. 14
10/06—Revision 0: Initial Version
Rev. A | Page 2 of 16










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