AD7327

Rev. 0 | Page 2 of 36

TABLE OF CONTENTS

Features .............................................................................................. 1

Functional Block Diagram .............................................................. 1

General Description ......................................................................... 1

Product Highlights ........................................................................... 1

Revision History ............................................................................... 2

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

Timing Specifications .................................................................. 7

Absolute Maximum Ratings............................................................ 8

ESD Caution.................................................................................. 8

Pin Configuration and Function Descriptions............................. 9

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

Terminology .................................................................................... 14

Theory of Operation ...................................................................... 16

Circuit Information.................................................................... 16

Converter Operation.................................................................. 16

Analog Input Structure.............................................................. 17

Typical Connection Diagram ................................................... 19

Analog Input ............................................................................... 19

Driver Amplifier Choice............................................................ 21

Registers ........................................................................................... 22

Addressing Registers .................................................................. 22

Control Register ......................................................................... 23

Sequence Register....................................................................... 25

Range Registers........................................................................... 25

Sequencer Operation ..................................................................... 26

Reference ..................................................................................... 28

VDRIVE............................................................................................ 28

Temperature Indicator ............................................................... 28

Modes of Operation ....................................................................... 29

Normal Mode.............................................................................. 29

Full Shutdown Mode.................................................................. 29

Autoshutdown Mode ................................................................. 30

Autostandby Mode..................................................................... 30

Power vs. Throughput Rate....................................................... 31

Serial Interface ................................................................................ 32

Microprocessor Interfacing........................................................... 33

AD7327 to ADSP-21xx.............................................................. 33

AD7327 to ADSP-BF53x ........................................................... 33

Application Hints ........................................................................... 34

Layout and Grounding .............................................................. 34

Outline Dimensions ....................................................................... 35

Ordering Guide .......................................................................... 35

REVISION HISTORY

1/06—Revision 0: Initial Version