AD7939BCPZ-REEL7 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD7939BCPZ-REEL7 Datasheet PDF : 32 Pages
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TABLE OF CONTENTS
AD7938—Specifications.................................................................. 3
AD7939—Specifications.................................................................. 5
Timing Specifications....................................................................... 7
Absolute Maximum Ratings............................................................ 8
ESD Caution.................................................................................. 8
Pin Configuration and Function Description .............................. 9
Terminology .................................................................................... 11
Typical Performance Characteristics ........................................... 13
On-Chip Registers .......................................................................... 15
Control Register.......................................................................... 15
Sequencer Operation ................................................................. 16
Shadow Register.......................................................................... 16
Circuit Information ........................................................................ 17
Converter Operation.................................................................. 17
ADC Transfer Function............................................................. 17
REVISION HISTORY
10/04—Revision 0: Initial Version
AD7938/AD7939
Typical Connection Diagram ................................................... 18
Analog Input Structure.............................................................. 18
Analog Inputs.............................................................................. 19
Analog Input Selection .............................................................. 21
Reference Section ....................................................................... 22
Parallel Interface......................................................................... 24
Power Modes of Operation....................................................... 27
Power vs. Throughput Rate....................................................... 28
Microprocessor Interfacing....................................................... 28
Application Hints ........................................................................... 30
Grounding and Layout .............................................................. 30
PCB Design Guidelines for Chip Scale Package .................... 30
Evaluating the AD7938/AD7939 Performance ...................... 30
Outline Dimensions ....................................................................... 31
Ordering Guide .......................................................................... 32
Rev. 0 | Page 2 of 32
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