AD5372/AD5373

Preliminary Technical Data

Rev. P

rF| Page 2 of 25

TABLE OF CONTENTS

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

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

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

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

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

Terminology .................................................................................... 11

Functional Description .................................................................. 12

DAC Architecture—General..................................................... 12

Channel Groups.......................................................................... 12

A/ B Reigsters And Gain/Offset Adjustment.......................... 13

Load DAC.................................................................................... 13

Offset DACs ................................................................................ 13

Output Amplifier........................................................................ 14

Transfer Function ....................................................................... 14

Reference Selection .................................................................... 14

Calibration................................................................................... 15

AD5372 Calibration Example................................................... 15

Reset Function ............................................................................ 16

Clear Function ............................................................................ 16

BUSY and LDAC Functions...................................................... 16

Power-Down Mode .................................................................... 16

Thermal Monitor Function....................................................... 16

Toggle Mode................................................................................ 17

Serial Interface ................................................................................ 18

SPI Write Mode........................................................................... 18

SPI Readback Mode ................................................................... 19

Register Update Rates ................................................................ 19

Channel Addressing And Special Modes ................................ 19

Special Function Mode .............................................................. 20

Power Supply Decoupling ......................................................... 22

Power Supply Sequencing ......................................................... 22

Interfacing Examples...................................................................... 23

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

Ordering Guide........................................................................... 24

REVISION HISTORY

Pr B1

Modified SPI timing diagrams

Added Reference Selection and Calibration text

Pr. B2

Added Reset Function text

Pr. B3

Added Power Down Mode text

Pr. B4

Added Terminology and Power Supply Sequencing sections

Pr D

Rewrote calibration section

Changed SPI read diagram

Pr F.

Changed LFCSP Vout8 and Vout9 positions