AD7921ARM(Rev0) Ver la hoja de datos (PDF) - Analog Devices

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AD7921ARM
(Rev.:Rev0)

2-Channel, 2.35 V to 5.25 V 250 kSPS, 10-/12-Bit ADCs

Analog Devices 

AD7911/AD7921

TABLE OF CONTENTS

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

AD7911 Specifications................................................................. 3

AD7921 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

REVISION HISTORY

Revision 0: Initial Version

Analog Input ............................................................................... 16

Digital Inputs .............................................................................. 17

DIN Input .................................................................................... 17

DOUT Output ............................................................................ 17

Modes of Operation ....................................................................... 18

Normal Mode.............................................................................. 18

Power-Down Mode .................................................................... 18

Power-Up Time .......................................................................... 19

Power vs. Throughput Rate....................................................... 20

Serial Interface ................................................................................ 21

Microprocessor Interfacing....................................................... 22

Application Hints ........................................................................... 24

Grounding and Layout .............................................................. 24

Outline Dimensions ....................................................................... 25

Ordering Guide .......................................................................... 25

Rev. 0 | Page 2 of 28

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