AD5680

Data Sheet

Rev. C | 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 Configurations and Function Descriptions ........................... 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 Information .............................................................. 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

7/2017—Rev. B to Rev. C

Changed ADSP-BF53x to ADSP-BF531..................... Throughout

Changed ADuM13x to ADuM130D........................... Throughout

Change to Figure 28 ....................................................................... 13

Changes to Figure 37...................................................................... 16

Changes to Ordering Guide .......................................................... 19

2/2014—Rev. A to Rev. B

Added 8-Lead LFCSP.........................................................Universal

Changes to Figure 3 Caption and Table 4 Caption ...................... 6

Added Figure 4; Renumbered Sequentially .................................. 6

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

Changes to Ordering Guide .......................................................... 17

3/2007—Rev. 0 to Rev. A

Changes to Input Shift Register Section ...................................... 12

Changes to Figure 25...................................................................... 12

6/2006—Revision 0: Initial Version