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AD7938 Datasheet(PDF) 2 Page - Analog Devices

Part # AD7938
Description  8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7938 Datasheet(HTML) 2 Page - Analog Devices

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AD7938/AD7939
Preliminary Technical Data
TABLE OF CONTENTS
AD7938—Specifications.................................................................. 3
AD7939—Specifications.................................................................. 5
Timing Specifications....................................................................... 7
Absolute Maximum Ratings............................................................ 8
ESD Caution.................................................................................. 8
Pin Function Description ................................................................ 9
Terminology .................................................................................... 11
Typical Performance Characteristics ........................................... 13
On-Chip Registers .......................................................................... 16
Circuit Information ........................................................................ 18
Converter Operation.................................................................. 18
ADC Transfer Function............................................................. 18
Typical Connection Diagram ................................................... 19
Analog Input Structure.............................................................. 19
Analog Inputs.............................................................................. 20
Analog Input Selection .............................................................. 22
Reference Section ....................................................................... 23
Parallel Interface......................................................................... 25
Power Modes of Operation....................................................... 28
Power vs. Throughput Rate....................................................... 29
Microprocessor Interfacing....................................................... 29
Application Hints ........................................................................... 31
Grounding and Layout .............................................................. 31
PCB Design Guidelines for Chip Scale Package .................... 31
Evaluating the AD7938/AD7939 Performance ...................... 31
Outline Dimensions ....................................................................... 32
Ordering Guide .......................................................................... 32
REVISION HISTORY
8/04—Revision PrN: Preliminary Version
Rev. PrN | Page 2 of 32


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