AD5444/AD5446

Data Sheet

Rev. E | Page 2 of 28

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

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

 

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

 

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

 

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

 

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

 

Pin Configuration and Function Descriptions............................. 7

 

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

 

Terminology .................................................................................... 14

 

General Description ....................................................................... 15

 

DAC Section................................................................................ 15

 

Circuit Operation ....................................................................... 15

 

Single-Supply Applications ....................................................... 17

 

Adding Gain................................................................................ 17

 

Divider or Programmable Gain Element ................................ 17

 

Amplifier Selection .................................................................... 18

 

Reference Selection .................................................................... 18

 

Serial Interface ................................................................................ 20

 

Microprocessor Interfacing....................................................... 21

 

PCB Layout and Power Supply Decoupling................................ 23

 

Overview of AD54xx and AD55xx Current Output Devices... 24

 

Outline Dimensions ....................................................................... 25

 

Ordering Guide .......................................................................... 25

 

REVISION HISTORY

6/13—Rev. D to Rev. E

Changes to General Description Section ...................................... 1

Change to Figure 46 and Figure 47 .............................................. 21

Changes to Ordering Guide .......................................................... 25

4/12—Rev. C to Rev. D

Changes to General Description Section ...................................... 1

Deleted Evaluation Board for the DAC Section ......................... 23

Deleted Power Supplies for the Evaluation Board Section ....... 23

Deleted Figure 54; Renumbered Sequentially ............................ 24

Deleted Figure 55 and Figure 56................................................... 25

Updated Outline Dimensions ....................................................... 25

Changes to Ordering Guide .......................................................... 25

Deleted Figure 57............................................................................ 26

4/07—Rev. B to Rev. C

Changes to Table 9.......................................................................... 19

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

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

Changes to General Description .................................................... 1

Changes to Table 1............................................................................ 3

Changes to Figure 22...................................................................... 10

Changes to Figure 23...................................................................... 10

Changes to Table 9.......................................................................... 19

Changes to Table 12........................................................................ 27

Updated Outline Dimensions ....................................................... 28

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

4/05—Rev. 0 to Rev. A

Added AD5446 ...................................................................Universal

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

Changes to General Description .....................................................1

Changes to Specifications.................................................................3

Inserted Figure 7; Renumbered Sequentially.................................9

Inserted Figure 9; Renumbered Sequentially.................................9

Inserted Figure 13; Renumbered Sequentially ........................... 10

Changes to Figure 22...................................................................... 11

Changes to Figure 23...................................................................... 11

Changes to Serial Interface............................................................ 20

Changes to Figure 44...................................................................... 20

Changes to Figure 45...................................................................... 20

Updated Outline Dimensions....................................................... 28

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

10/04—Revision 0: Initial Version