AD5680

Rev. 0 | Page 2 of 20

TABLE OF CONTENTS

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

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

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

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

Product Highlights ........................................................................... 1

Related Devices ................................................................................. 1

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

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

Timing Characteristics..................................................................... 4

Absolute Maximum Ratings............................................................ 5

ESD Caution.................................................................................. 5

Pin Configuration and Function Description .............................. 6

Typical Performance Characteristics ............................................. 7

Terminology .................................................................................... 10

Theory of Operation ...................................................................... 11

DAC Section................................................................................ 11

Resistor String ............................................................................. 11

Output Amplifier........................................................................ 11

Interpolator Architecture .......................................................... 11

Serial Interface ............................................................................ 12

Input Shift Register .................................................................... 12

SYNC Interrupt .......................................................................... 12

Power-On Reset.......................................................................... 12

Microprocessor Interfacing....................................................... 13

Applications..................................................................................... 14

Closed-Loop Applications ........................................................ 14

Filter ............................................................................................. 14

Choosing a Reference for the AD5680 .................................... 15

Using a Reference as a Power Supply for the AD5680 .......... 16

Using the AD5680 with a Galvanically Isolated Interface .... 16

Power Supply Bypassing and Grounding................................ 16

Outline Dimensions ....................................................................... 17

Ordering Guide .......................................................................... 17

REVISION HISTORY

6/06—Revision 0: Initial Version