AD7912/AD7922
TABLE OF CONTENTS
Specifications..................................................................................... 3
DIN Input.................................................................................... 17
DOUT Output ............................................................................ 17
Modes of Operation....................................................................... 18
Normal Mode.............................................................................. 18
Power-Down Mode.................................................................... 18
Power-Up Time .......................................................................... 20
Daisy-Chain Mode..................................................................... 20
Daisy-Chain Example................................................................ 22
Power vs. Throughput Rate........................................................... 24
Serial Interface ................................................................................ 25
Microprocessor Interfacing....................................................... 26
Application Hints ........................................................................... 28
Grounding and Layout .............................................................. 28
Evaluating AD7912/AD7922 Performance................................. 29
Outline Dimensions....................................................................... 30
Ordering Guide .......................................................................... 30
AD7912 Specifications................................................................. 3
AD7922 Specifications................................................................. 5
Timing Specifications .................................................................. 7
Timing Diagrams.......................................................................... 7
Timing Examples.......................................................................... 8
Absolute Maximum Ratings............................................................ 9
ESD Caution.................................................................................. 9
Pin Configurations and Function Descriptions ......................... 10
Terminology .................................................................................... 11
Typical Performance Characteristics ........................................... 13
Circuit Information........................................................................ 15
Converter Operation.................................................................. 15
ADC Transfer Function............................................................. 15
Typical Connection Diagram ................................................... 16
Analog Input ............................................................................... 16
Digital Inputs .............................................................................. 17
REVISION HISTORY
Revision 0: Initial Version
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