AD5762R

Preliminary Technical Data

Rev. PrA | Page 2 of 33

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 ...................................................................... 21

DAC Architecture....................................................................... 21

Reference Buffers........................................................................ 21

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

Simultaneous Updating via LDAC........................................... 22

Transfer Function ....................................................................... 23

Asynchronous Clear (CLR)....................................................... 23

Function Register ....................................................................... 24

Data Register............................................................................... 25

Coarse Gain Register ................................................................. 25

Fine Gain Register ...................................................................... 25

Offset Register ............................................................................ 25

Offset and Gain Adjustment Worked Example...................... 27

AD5762R Features.......................................................................... 28

Analog Output Control ............................................................. 28

Digital Offset and Gain Control............................................... 28

Programmable Short-Circuit Protection ................................ 28

Digital I/O Port........................................................................... 28

die Temperature Sensor............................................................. 28

Local Ground Offset Adjust...................................................... 28

Applications Information .............................................................. 29

Typical Operating Circuit ......................................................... 29

Layout Guidelines........................................................................... 30

Galvanically Isolated Interface ................................................. 30

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

Evaluation Board ........................................................................ 32

Outline Dimensions ....................................................................... 33

Ordering Guide .......................................................................... 33

REVISION HISTORY

Preliminary Revision PrA December 10, 2007