AD5770R datasheet(2/59 Pages) AD

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AD5770R

Data Sheet

Rev. 0 | Page 2 of 59

TABLE OF CONTENTS

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

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

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

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

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

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

AC Performance Characteristics ................................................ 6

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

Timing Diagrams.......................................................................... 8

Absolute Maximum Ratings............................................................ 9

ESD Caution.................................................................................. 9

Pin Configuration and Function Descriptions........................... 10

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

Terminology .................................................................................... 24

Theory of Operation ...................................................................... 25

Digital to Analog Converter ..................................................... 25

Precision Reference Current Generation ................................ 25

Diagnostic Monitoring .............................................................. 25

Serial Interface ............................................................................ 26

Reset Function ............................................................................ 28

Load DAC.................................................................................... 28

Input Page Mask Register.......................................................... 28

DAC Page Mask Register........................................................... 28

Output Stages.............................................................................. 28

Output Filter ............................................................................... 30

Output Current Scaling ............................................................. 30

ALARM ....................................................................................... 30

Applications Information .............................................................. 33

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

AD5770R to SPI interface ......................................................... 33

Thermal Considerations............................................................ 33

Combining Channels to Increase Current Range.................. 33

Layout Guidelines....................................................................... 33

SPI Configuration Registers...................................................... 35

AD5770R Configuration Registers.......................................... 35

Outline Dimensions....................................................................... 59

Ordering Guide .......................................................................... 59

REVISION HISTORY

2/2019—Revision 0: Initial Version

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