AD7912ARM 데이터 시트보기 (PDF) - Analog Devices

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AD7912ARM

2-Channel, 2.35 V to 5.25 V, 1 MSPS, 10-/12-Bit ADCs

Analog Devices 

AD7912/AD7922

TABLE OF CONTENTS

Specifications..................................................................................... 3

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

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

Rev. 0 | Page 2 of 32

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