AD5665-RBRUZ-2 datasheet(2/32 Pages) AD

2 / 32 page

AD5625R/AD5645R/AD5665R, AD5625/AD5665

Preliminary Technical Data

Rev. PrA. | Page 2 of 32

TABLE OF CONTENTS

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

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

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

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

Table1. Related Devices ........................................................2

TABLE OF CONTENTS ......................................................2

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

AC Characteristics ................................................................4

I2C Timing Specifications.....................................................5

Absolute Maximum Ratings ................................................7

Pin Configuration and Function Descriptions..................8

Typical Performance Characteristics ..................................9

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

Theory of Operation .............................................................19

D/A Section............................................................................19

Resistor String........................................................................19

Output Amplifier...................................................................19

Internal Reference .................................................................19

External Reference ................................................................19

Serial Interface .......................................................................19

Write Operation.....................................................................21

Read Operation......................................................................21

High Speed Mode ..................................................................22

Multiple Byte Write ...............................................................23

Broadcast Mode .....................................................................23

Input Shift Register................................................................23

Write Commands and LDAC...............................................24

LDAC Setup............................................................................24

LDAC Pin .................................................................................25

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

Power-on Reset and Software Reset ....................................26

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

Clear Pin (CLR) .....................................................................26

Applications............................................................................27

Using A Reference as Power Supply ....................................27

Bipolar Operation..................................................................27

Power Supply Bypassing and Grounding ...........................27

Outline Dimensions ..............................................................28

Ordering Information ...........................................................29

REVISION HISTORY

4/06—Revision 0: Initial Version

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