AD5755/AD5735

Preliminary Technical Data

Rev. PrG | Page 2 of 34

TABLE OF CONTENTS

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

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

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

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

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

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

AC Performance Characteristics................................................ 6

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

Absolute Maximum Ratings.......................................................... 11

ESD Caution................................................................................ 11

Pin Configuration and Function Descriptions........................... 12

Typical Performance Characteristics ........................................... 15

Theory of Operation ...................................................................... 16

DAC Architecture....................................................................... 16

Power On State of AD5755/AD5735 ....................................... 16

Serial Interface ............................................................................ 17

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

Registers........................................................................................... 18

Programming Sequence to Write/Enable the Output

Correctly...................................................................................... 19

Changing and Reprogramming the Range ............................. 19

Data Registers ............................................................................. 20

Control Registers........................................................................ 23

Readback Operation .................................................................. 26

Features............................................................................................ 28

Output Fault................................................................................ 28

Voltage Output Short Circuit Protection ................................ 28

Digital Offset and Gain Control............................................... 28

Status Readback During Write ................................................. 28

Asynchronous Clear................................................................... 29

Packet Error Checking............................................................... 29

Watchdog timer.......................................................................... 29

Output Alert................................................................................ 29

Internal Reference ...................................................................... 29

External current setting resistor............................................... 29

Slew rate control ......................................................................... 29

Power Dissipation control......................................................... 30

DC-DC Converters.................................................................... 30

Applications Information.............................................................. 32

Precision Voltage Reference Selection..................................... 32

Driving Inductive Loads............................................................ 32

Transient voltage protection ..................................................... 32

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

Layout Guidelines....................................................................... 33

Galvanically Isolated Interface ................................................. 33

Outline Dimensions....................................................................... 34

Ordering Guide .......................................................................... 34