AD7612

Data Sheet

Rev. A | Page 2 of 32

TABLE OF CONTENTS

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

Applications....................................................................................... 1

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

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

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

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

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

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

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

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

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

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

Terminology .................................................................................... 16

Theory of Operation ...................................................................... 17

Overview...................................................................................... 17

Converter Operation.................................................................. 17

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

Transfer Functions...................................................................... 18

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

Analog Inputs ............................................................................. 20

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

Voltage Reference Input/Output .............................................. 21

Power Supplies ............................................................................ 22

Conversion Control ................................................................... 23

Interfaces.......................................................................................... 24

Digital Interface.......................................................................... 24

Parallel Interface......................................................................... 24

Serial Interface ............................................................................ 25

Master Serial Interface............................................................... 25

Slave Serial Interface .................................................................. 27

Hardware Configuration ........................................................... 29

Software Configuration ............................................................. 29

Microprocessor Interfacing....................................................... 30

Application Information................................................................ 31

Layout Guidelines....................................................................... 31

Evaluating Performance ............................................................ 31

Outline Dimensions ....................................................................... 32

Ordering Guide .......................................................................... 32

REVISION HISTORY

12/12—Rev. 0 to Rev. A

Added Exposed Pad Note................................................................ 8

Changes to Power Sequencing Section........................................ 23

Updated Outline Dimensions ....................................................... 32

Changes to Ordering Guide .......................................................... 32

10/06—Revision 0: Initial Version