AD5767 datasheet(2/43 Pages) AD

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AD5766/AD5767

Data Sheet

Rev. C | Page 2 of 43

TABLE OF CONTENTS

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

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

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

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

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

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

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

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

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

Thermal Resistance .................................................................... 11

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

Pin Configurations and Function Descriptions ......................... 12

Typical Performance Characteristics ........................................... 16

Dither Characteristics................................................................ 25

Terminology .................................................................................... 27

Theory of Operation ...................................................................... 29

Digital-to-Analog Converter .................................................... 29

DAC Architecture....................................................................... 29

Resistor String............................................................................. 29

Power-On Reset (POR).............................................................. 29

Dither ........................................................................................... 31

Dither Power-Down Mode........................................................ 31

Monitor Mux............................................................................... 31

Serial Interface ............................................................................ 32

Input Shift Register .................................................................... 33

Monitor Mux Control................................................................ 34

No Operation.............................................................................. 35

Daisy-Chain Mode..................................................................... 35

Write and Update Commands.................................................. 35

Span Register............................................................................... 36

Dither Power Control Register................................................. 36

Write Input Data to All DAC Registers................................... 36

Software Full Reset..................................................................... 37

Select Register for Readback..................................................... 37

Apply N0 or N1 Dither Signal to DACs Register................... 38

Dither Scale ................................................................................. 38

Invert Dither Register................................................................ 39

Applications Information .............................................................. 40

Dither Configuration................................................................. 40

Thermal Considerations............................................................ 40

Microprocessor Interfacing....................................................... 40

AD5766/AD5767 to SPI Interface............................................ 40

Layout Guidelines....................................................................... 41

Outline Dimensions....................................................................... 42

Ordering Guide .......................................................................... 43

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