AD7680

Rev. A | Page 2 of 24

TABLE OF CONTENTS

Specifications..................................................................................... 2

 

Specifications..................................................................................... 4

 

Timing Specifications....................................................................... 6

 

Absolute Maximum Ratings............................................................ 7

 

ESD Caution.................................................................................. 7

 

Pin Configurations and Function Descriptions ........................... 8

 

Terminology ...................................................................................... 9

 

Typical Performance Characteristics ........................................... 10

 

Circuit Information ........................................................................ 12

 

Converter Operation.................................................................. 12

 

Analog Input ............................................................................... 12

 

ADC Transfer Function ................................................................. 13

 

Typical Connection Diagram ................................................... 13

 

Digital Inputs .......................................................................... 13

 

Modes of Operation ....................................................................... 14

 

Normal Mode.............................................................................. 14

 

Power-Down Mode .................................................................... 15

 

Power vs. Throughput Rate........................................................... 16

 

Serial Interface ................................................................................ 17

 

AD7680 to ADSP-218x.............................................................. 18

 

Application Hints ........................................................................... 19

 

Grounding and Layout .............................................................. 19

 

Outline Dimensions ....................................................................... 20

 

Ordering Guide .......................................................................... 21

 

REVISION HISTORY

5/11—Rev. 0 to Rev. A

Deleted the Evaluating the AD7680 Performance Section ...... 19

Changes to Ordering Guide .......................................................... 21

1/04—Revision 0: Initial Version