AD7678

Rev. A | Page 2 of 28

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

Pin Configuration and Function Descriptions............................. 8

 

Definition of Specifications........................................................... 11

 

Typical Performance Characteristics ........................................... 12

 

Circuit Information ........................................................................ 15

 

Converter Operation.................................................................. 15

 

Typical Connection Diagram ................................................... 17

 

Power Dissipation versus Throughput .................................... 19

 

Conversion Control.................................................................... 19

 

Digital Interface.......................................................................... 20

 

Parallel Interface......................................................................... 20

 

Serial Interface ............................................................................ 20

 

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

 

Slave Serial Interface .................................................................. 22

 

Microprocessor Interfacing....................................................... 24

 

Application Hints ........................................................................... 25

 

Layout .......................................................................................... 25

 

Evaluating the AD7678’s Performance.................................... 25

 

Outline Dimensions ....................................................................... 26

 

Ordering Guide .......................................................................... 26

 

REVISION HISTORY

6/09—Rev. 0 to Rev. A

Changes to Endnote 3, Table 2........................................................ 4

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

Changes to Figure 4 and Table 6..................................................... 8

Changes to Evaluating the AD7678’s Performance Section...... 25

Updated Outline Dimensions ....................................................... 26

Changes to Ordering Guide .......................................................... 26

8/03—Revision 0: Initial Version