AD5683R/AD5682R/AD5681R/AD5683

Data Sheet

Rev. D | Page 2 of 28

TABLE OF CONTENTS

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

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

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

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

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

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

Functional Block Diagrams—LFCSP............................................. 3

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

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

Timing Characteristics ................................................................ 6

Absolute Maximum Ratings............................................................ 8

Thermal Resistance ...................................................................... 8

ESD Caution.................................................................................. 8

Pin Configurations and Function Descriptions ........................... 9

Typical Performance Characteristics ........................................... 11

Terminology .................................................................................... 17

Theory of Operation ...................................................................... 19

Digital-to-Analog Converter .................................................... 19

Transfer Function....................................................................... 19

DAC Architecture....................................................................... 19

Serial Interface ................................................................................ 21

SPI Serial Data Interface............................................................ 21

Short Write Operation (AD5681R Only)................................ 21

Internal Registers........................................................................ 23

Commands.................................................................................. 23

Hardware LDAC......................................................................... 25

Hardware RESET........................................................................ 25

Thermal Hysteresis .................................................................... 26

Power-Up Sequence ................................................................... 26

Recommended Regulator.......................................................... 26

Layout Guidelines....................................................................... 26

Outline Dimensions....................................................................... 27

Ordering Guide .......................................................................... 28

REVISION HISTORY

12/2016—Rev. C to Rev. D

Changed 1.8 V to 1.62 V, 1.8 V – 10% to 1.62 V, 5 V + 10% to 5.5 V,

Changes to DC Power Supply Rejection Ratio, PSRR, Test

Conditions/Comments Column, Table 2......................................... 4

3/2016—Rev. B to Rev. C

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

Changes to Specifications Section.................................................. 4

Changes to Table 2............................................................................ 5

Changes to AC Characteristics Section, Timing Characteristics

Section, and Table 4.......................................................................... 6

Changes to Figure 4.......................................................................... 7

Changes to Table 7............................................................................ 9

Changes to Table 8.......................................................................... 10

Changes to Terminology Section.................................................. 17

Changes to SPI Serial Data Interface Section ............................. 21

10/2014—Rev. A to Rev. B

Changes to Table 1.............................................................................1

Changes to Figure 14...................................................................... 11

Added Recommended Regulator Section ................................... 26

Changes to Ordering Guide.......................................................... 28

1/2014—Rev. 0 to Rev. A

Change to Features Section..............................................................1

Removed Endnote 2, Endnote 3, Endnote 5, and Endnote 6,

Table 2; Renumbered Sequentially..................................................5

Removed Endnote 2, Table 3; Renumbered Sequentially ............6

Removed Endnote 1, Table 4; Renumbered Sequentially ............6

Changes to Table 5.............................................................................8

Removed Solder Heat Reflow Section and Figure 53;

Renumbered Sequentially ............................................................. 25

12/2013—Revision 0: Initial Version