AD7980

Preliminary Technical Data

Rev Pr C | Page 2 of 22

TABLE OF CONTENTS

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

Timing Specifications....................................................................... 5

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

Terminology ...................................................................................... 8

Circuit Information.................................................................... 10

Converter Operation.................................................................. 10

Typical Connection Diagram ................................................... 11

Analog Input ............................................................................... 11

Driver Amplifier Choice............................................................ 12

Voltage Reference Input............................................................. 13

Voltage Reference Input ............................................................ 13

Power Supply............................................................................... 13

Digital Interface.......................................................................... 13

CS MODE 3-Wire, No BUSY Indicator .................................. 14

CS Mode 3-Wire with BUSY Indicator ................................... 15

CS Mode 4-Wire with BUSY Indicator ................................... 17

Chain Mode, No BUSY Indicator ............................................ 18

Chain Mode with BUSY Indicator ........................................... 19

Application Hints ........................................................................... 20

Layout .......................................................................................... 20

Evaluating the AD7980’s Performance.................................... 20

Outline Dimensions ....................................................................... 21

REVISION HISTORY