AD5764R

Rev. PrA | Page 2 of 32

TABLE OF CONTENTS

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

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

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

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

Functional Block Diagram .............................................................. 3

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

AC Performance Characteristic...................................................... 6

Timing Characteristics..................................................................... 7

Absolute Maximum Ratings.......................................................... 10

ESD Caution................................................................................ 10

Pin Configuration and Function Descriptions........................... 11

Terminology .................................................................................... 13

Typical Performance Characteristics ........................................... 15

Theory of Operation ...................................................................... 20

DAC Architecture....................................................................... 20

Reference Buffers........................................................................ 20

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

Simultaneous Updating via LDAC........................................... 21

Transfer Function ....................................................................... 22

Asynchronous Clear (CLR)....................................................... 22

Function Register ....................................................................... 23

Data Register............................................................................... 24

Coarse Gain Register ................................................................. 24

Fine Gain Register ...................................................................... 24

Offset Register ............................................................................ 24

Offset and Gain Adjustment Worked Example...................... 26

AD5764R Features.......................................................................... 27

Analog Output Control ............................................................. 27

Digital Offset and Gain Control............................................... 27

Programmable Short-Circuit Protection ................................ 27

Digital I/O Port........................................................................... 27

Die Temperature Sensor ............................................................ 27

Local Ground Offset Adjust...................................................... 27

Applications Information .............................................................. 28

Typical Operating Circuit ......................................................... 28

Layout Guidelines........................................................................... 29

Galvanically Isolated Interface ................................................. 29

Microprocessor Interfacing....................................................... 29

Evaluation Board ........................................................................ 31

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

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

REVISION HISTORY

3/06—Revision PrA

Preliminary Technical Data