AD5662

Rev. A | Page 2 of 24

TABLE OF CONTENTS

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

 

Timing Characteristics..................................................................... 5

 

Absolute Maximum Ratings............................................................ 6

 

ESD Caution.................................................................................. 6

 

Pin Configuration and Function Description .............................. 7

 

Typical Performance Characteristics ............................................. 8

 

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

 

Theory of Operation ...................................................................... 14

 

DAC Section................................................................................ 14

 

Resistor String............................................................................. 14

 

Output Amplifier........................................................................ 14

 

Serial Interface ............................................................................ 14

 

Input Shift Register .................................................................... 15

 

SYNC Interrupt .......................................................................... 15

 

Power-On Reset.......................................................................... 15

 

Power-Down Modes .................................................................. 16

 

Microprocessor Interfacing ...................................................... 16

 

Applications..................................................................................... 18

 

Choosing a Reference for the AD5662.................................... 18

 

Using a Reference as a Power Supply for the AD5662 .......... 18

 

Bipolar Operation Using the AD5662..................................... 19

 

Using the AD5662 as an Isolated, Programmable, 4-20 mA

Process Controller...................................................................... 19

 

Using AD5662 with a Galvanically Isolated Interface........... 20

 

Power Supply Bypassing and Grounding................................ 20

 

Outline Dimensions ....................................................................... 21

 

Ordering Guide .......................................................................... 22

 

Automotive Products................................................................. 22

 

REVISION HISTORY

12/10—Rev. 0 to Rev. A

Changes to Features Section.............................................................1

Changes to Ordering Guide ...........................................................22

Added Automotive Products Section ...........................................22

1/05—Revision 0: Initial Version