AD5412/AD5422

Preliminary Technical Data

Rev. PrF | Page 2 of 38

TABLE OF CONTENTS

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

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

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

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

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

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

AC Performance Characteristics ................................................ 7

Timing Characteristics ................................................................ 8

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

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

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

Typical Performance Characteristics Voltage output............... 13

Typical Performance Characteristics current output ............... 17

Typical Performance Characteristics general ............................ 20

Terminology .................................................................................... 22

Theory of Operation ...................................................................... 24

Architecture................................................................................. 24

Serial Interface ............................................................................ 24

Power-on state............................................................................. 27

Transfer Function ....................................................................... 27

Data Register ............................................................................... 28

Control Register.......................................................................... 28

RESET register ............................................................................ 28

Status register .............................................................................. 29

Features ............................................................................................ 30

fault alert...................................................................................... 30

voltage output short circuit protection.................................... 30

Voltage ouTput over-range........................................................ 30

voltage output force-sense......................................................... 30

Asynchronous Clear (CLEAR) ................................................. 30

Internal Reference ...................................................................... 30

External current setting resistor ............................................... 30

Digital Power Supply.................................................................. 30

External boost function............................................................. 31

External compensation capacitor............................................. 31

digital Slew rate control ............................................................. 31

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

driving inductive loads .............................................................. 33

Transient voltage protection ..................................................... 33

Galvanically Isolated Interface ................................................. 33

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

Layout Guidelines....................................................................... 34

Thermal and supply considerations......................................... 35

Outline Dimensions ....................................................................... 36

Ordering Guide .......................................................................... 37

REVISION HISTORY

PrF – Preliminary Version, April 25, 2008