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AD7643 Datasheet(PDF) 2 Page - Analog Devices

Part # AD7643
Description  18-Bit, 1.25 MSPS PulSAR
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7643 Datasheet(HTML) 2 Page - Analog Devices

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AD7643
Rev. 0 | Page 2 of 28
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Specifications....................................................................... 5
Absolute Maximum Ratings............................................................ 7
ESD Caution.................................................................................. 7
Pin Configuration and Function Descriptions............................. 8
Terminology .................................................................................... 11
Typical Performance Characteristics ........................................... 12
Applications Information .............................................................. 15
Circuit Information.................................................................... 15
Converter Operation.................................................................. 15
Transfer Functions...................................................................... 16
Typical Connection Diagram........................................................ 17
Analog Inputs.............................................................................. 17
Multiplexed Inputs ..................................................................... 17
Driver Amplifier Choice ........................................................... 18
Voltage Reference Input ............................................................ 18
Power Supply............................................................................... 20
Conversion Control ................................................................... 20
Interfaces.......................................................................................... 21
Digital Interface.......................................................................... 21
Parallel Interface......................................................................... 21
Serial interface ............................................................................ 22
Master Serial Interface............................................................... 22
Slave Serial Interface .................................................................. 24
Microprocessor Interfacing....................................................... 26
Application Hints ........................................................................... 27
Layout .......................................................................................... 27
Evaluating the AD7643 Performance ...................................... 27
Outline Dimensions ....................................................................... 28
Ordering Guide .......................................................................... 28
REVISION HISTORY
4/06—Revision 0: Initial Version


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