AD5737 Ver la hoja de datos (PDF) - Analog Devices

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Fabricante

AD5737

Quad Channel, 16-Bit, Serial Input, 4-20mA Output DAC, Dynamic Power Control, HART Connectivity

Analog Devices 

AD5757/AD5737

TABLE OF CONTENTS

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

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

Product Highlights ........................................................................... 1

General Description ......................................................................... 1

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

Specifications..................................................................................... 3

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

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

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

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

Pin Configuration and Function Descriptions........................... 10

Typical Performance Characteristics ........................................... 13

Theory of Operation ...................................................................... 14

DAC Architecture....................................................................... 14

Power On State of AD5757/AD5737 ....................................... 14

Serial Interface ............................................................................ 14

Registers ........................................................................................... 15

Programming Sequence to Write/Enable the Output

Correctly ...................................................................................... 16

Changing and Reprogramming the Range ............................. 16

Data Registers ............................................................................. 17

Control Registers ........................................................................ 20

Readback Operation .................................................................. 23

Preliminary Technical Data

Features ............................................................................................ 25

Output Fault ................................................................................ 25

Digital Offset and Gain Control............................................... 25

Status Readback During Write ................................................. 25

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

Packet Error Checking............................................................... 26

Watchdog timer .......................................................................... 26

Output Alert................................................................................ 26

Internal Reference ...................................................................... 26

External current setting resistor ............................................... 26

HART ........................................................................................... 26

Slew rate control ......................................................................... 26

Power Dissipation control ......................................................... 27

DC-DC Converters .................................................................... 27

Applications Information .............................................................. 29

Precision Voltage Reference Selection..................................... 29

Driving Inductive Loads............................................................ 29

Transient voltage protection ..................................................... 29

Microprocessor Interfacing....................................................... 29

Layout Guidelines....................................................................... 29

Galvanically Isolated Interface ................................................. 30

Outline Dimensions ....................................................................... 31

Ordering Guide .......................................................................... 31

Rev. PrD | Page 2 of 31

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