AD5372/AD5373

Rev. C | Page 2 of 28

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

General Description ......................................................................... 3

 

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

 

AC Characteristics........................................................................ 5

 

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

 

Absolute Maximum Ratings............................................................ 9

 

ESD Caution.................................................................................. 9

 

Pin Configurations and Function Descriptions ......................... 10

 

Typical Performance Characteristics ........................................... 12

 

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

 

Theory of Operation ...................................................................... 15

 

DAC Architecture....................................................................... 15

 

Channel Groups.......................................................................... 15

 

A/B Registers and Gain/Offset Adjustment............................ 16

 

Load DAC.................................................................................... 16

 

Offset DACs ................................................................................ 16

 

Output Amplifier........................................................................ 17

 

Transfer Function ....................................................................... 17

 

Reference Selection .................................................................... 17

 

Calibration................................................................................... 18

 

Additional Calibration............................................................... 19

 

Reset Function ............................................................................ 19

 

Clear Function ............................................................................ 19

 

BUSY and LDAC Functions...................................................... 19

 

Power-Down Mode .................................................................... 20

 

Thermal Shutdown Function ................................................... 20

 

Toggle Mode................................................................................ 20

 

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

 

SPI Write Mode .......................................................................... 21

 

SPI Readback Mode ................................................................... 21

 

Register Update Rates ................................................................ 21

 

Channel Addressing and Special Modes ................................. 22

 

Special Function Mode.............................................................. 23

 

Applications Information .............................................................. 24

 

Power Supply Decoupling ......................................................... 24

 

Power Supply Sequencing ......................................................... 24

 

Interfacing Examples ................................................................. 24

 

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

 

Ordering Guide .......................................................................... 26

 

REVISION HISTORY

7/11—Rev. B to Rev. C

Added 64-Lead LFCSP Package........................................Universal

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

Change to General Description Section ........................................ 3

Changes to Table 5............................................................................ 9

Added Figure 7; Renumbered Sequentially ................................ 10

Changes to Table 6.......................................................................... 10

Updated Outline Dimensions ....................................................... 24

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

2/08—Rev. A to Rev. B

Added Table 1.................................................................................... 3

Changes to t10 Parameter ................................................................. 6

Added t23 Parameter ......................................................................... 6

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

Changes to Absolute Maximum Ratings Section..........................9

Changes to Pin Configuration and Function Descriptions

Section.............................................................................................. 10

Changes to Reset Function Section.............................................. 18

12/07—Rev. 0 to Rev. A

Changes to Table 3.............................................................................6

Changes to AD5373 Transfer Function Section......................... 16

Changes to Calibration Section .................................................... 17

Changes to Table 8.......................................................................... 18

Changes to Register Update Rates Section.................................. 20

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

8/07—Revision 0: Initial Version