Datasheet
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