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

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AD5381

40-Channel, 3 V/5 V, Single-Supply, 12-Bit, denseDAC

Analog Devices 

AD5381

TABLE OF CONTENTS

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

Integrated Functions ........................................................................ 1

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

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

Revision History ............................................................................... 3

General Description ......................................................................... 4

Specifications..................................................................................... 5

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

AD5381-3 Specifications ............................................................. 7

AC Characteristics........................................................................ 8

Timing Characteristics..................................................................... 9

Serial Interface Timing ................................................................ 9

I2C Serial Interface Timing........................................................ 11

Parallel Interface Timing ........................................................... 12

Absolute Maximum Ratings.......................................................... 14

ESD Caution................................................................................ 14

Pin Configuration and Function Descriptions........................... 15

Terminology .................................................................................... 18

Typical Performance Characteristics ........................................... 19

Functional Description .................................................................. 22

DAC Architecture—General..................................................... 22

Data Decoding ............................................................................ 22

On-Chip Special Function Registers (SFR) ............................ 23

SFR Commands .......................................................................... 23

Data Sheet

Hardware Functions....................................................................... 26

Reset Function ............................................................................ 26

Asynchronous Clear Function.................................................. 26

BUSY and LDAC Functions...................................................... 26

FIFO Operation in Parallel Mode ............................................ 26

Power-On Reset.......................................................................... 26

Power-Down ............................................................................... 26

Interfaces.......................................................................................... 27

DSP-, SPI-, MICROWIRE-Compatible Serial Interfaces ..... 27

I2C Serial Interface ..................................................................... 29

Parallel Interface ......................................................................... 31

Microprocessor Interfacing....................................................... 32

Applications Information .............................................................. 34

Power Supply Decoupling ......................................................... 34

Power Supply Sequencing ......................................................... 34

Typical Configuration Circuit .................................................. 35

Monitor Function....................................................................... 36

Toggle Mode Function............................................................... 36

Thermal Monitor Function....................................................... 36

Optical Attenuators .................................................................... 37

Utilizing FIFO............................................................................. 37

Outline Dimensions ....................................................................... 38

Ordering Guide .......................................................................... 38

Rev. E | Page 2 of 40

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