AD5381(RevA) データシートの表示（PDF） - Analog Devices

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AD5381
(Rev.:RevA)

40-Channel, 3 V/5 V, Single-Supply, 12-Bit, Voltage Output DAC

Analog Devices 

AD5381

TABLE OF CONTENTS

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

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

AD5381-5 Specifications ............................................................. 4

AD5381-3 Specifications ............................................................. 6

AC Characteristics........................................................................ 7

Timing Characteristics..................................................................... 8

Serial Interface Timing ................................................................ 8

I2C Serial Interface Timing........................................................ 10

Parallel Interface Timing ........................................................... 11

Absolute Maximum Ratings.......................................................... 13

Pin Configuration and Function Descriptions........................... 14

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

Typical Performance Characteristics ........................................... 18

Functional Description .................................................................. 21

DAC Architecture—General..................................................... 21

On-Chip Special Function Registers (SFR) ............................ 22

SFR Commands .......................................................................... 22

Hardware Functions....................................................................... 25

Reset Function ............................................................................ 25

Asynchronous Clear Function.................................................. 25

REVISION HISTORY

6/04—Data Sheet Changed from Rev. 0 to Rev. A

Changes to Ordering Guide ...........................................................36

5/04—Revision 0: Initial Version

BUSY and LDAC Functions...................................................... 25

FIFO Operation in Parallel Mode ............................................ 25

Power-On Reset.......................................................................... 25

Power-Down ............................................................................... 25

AD5381 Interfaces.......................................................................... 26

DSP, SPI, MICROWIRE Compatible Serial Interfaces .......... 26

I2C Serial Interface ..................................................................... 28

Parallel Interface......................................................................... 30

Microprocessor Interfacing....................................................... 31

Application Information................................................................ 33

Power Supply Decoupling ......................................................... 33

Typical Configuration Circuit .................................................. 33

AD5381 Monitor Function ....................................................... 34

Toggle Mode Function............................................................... 34

Thermal Monitor Function....................................................... 34

Optical Attenuators .................................................................... 35

Utilizing the AD5381 FIFO....................................................... 35

Outline Dimensions ....................................................................... 36

Ordering Guide .......................................................................... 36

Rev. A | Page 2 of 36

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