AD5625R/AD5645R/AD5665R, AD5625/AD5665

Data Sheet

Rev. C | Page 2 of 36

TABLE OF CONTENTS

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

 

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

 

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

 

Functional Block Diagrams............................................................. 1

 

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

 

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

 

Specifications—AD5665R/AD5645R/AD5625R ..................... 3

 

Specifications—AD5665/AD5625 ............................................. 5

 

AC Characteristics........................................................................ 7

 

I2C Timing Specifications............................................................ 8

 

Absolute Maximum Ratings.......................................................... 10

 

ESD Caution................................................................................ 10

 

Pin Configurations and Function Descriptions ......................... 11

 

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

 

Terminology .................................................................................... 21

 

Theory of Operation ...................................................................... 23

 

Digital-to-Analog Converter (DAC) ....................................... 23

 

Resistor String ............................................................................. 23

 

Output Amplifier........................................................................ 23

 

Internal Reference ...................................................................... 23

 

External Reference ..................................................................... 24

 

Serial Interface ............................................................................ 24

 

Write Operation.......................................................................... 24

 

Read Operation........................................................................... 24

 

High Speed Mode....................................................................... 26

 

Input Shift Register .................................................................... 26

 

Multiple Byte Operation............................................................ 26

 

Broadcast Mode.......................................................................... 28

 

LDAC Function .......................................................................... 28

 

Power-Down Modes .................................................................. 30

 

Power-On Reset and Software Reset ....................................... 31

 

Internal Reference Setup (R Versions) .................................... 31

 

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

 

Using a Reference as a Power Supply for the

AD56x5R/AD56x5 ..................................................................... 32

 

Bipolar Operation Using the AD56x5R/AD56x5 .................. 32

 

Power Supply Bypassing and Grounding................................ 32

 

Outline Dimensions ....................................................................... 33

 

Ordering Guide .......................................................................... 35

 

REVISION HISTORY

3/13—Rev. B to Rev. C

Added 12-Ball WLCSP ......................................................Universal

Change to Features and General Description Sections ............... 1

Changes to Reference Output (1.25 V), Reference TC

Parameter, Table 2............................................................................. 4

Added Figure 8; Renumbered Sequentially ................................ 12

Added Table 8; Renumbered Sequentially .................................. 12

Changes to Internal Reference Section........................................ 23

Changes to Serial Interface Section and Table 9 Title................ 24

Changes to Figure 58 and Figure 60 Captions............................ 25

Updated Outline Dimensions ....................................................... 33

Changes to Ordering Guide .......................................................... 35

12/09—Rev. A to Rev. B

Changes to Features Section, General Description Section,

and Table 1..........................................................................................1

Changes to Table 2.............................................................................3

Changes to Internal Reference Section........................................ 22

Updated Outline Dimensions....................................................... 32

Changes to Ordering Guide .......................................................... 33

6/09—Rev. 0 to Rev. A

Changes to Features and General Description Sections ..............1

Changes to Table 2.............................................................................3

Changes to Table 3.............................................................................5

Changes to Digital-to-Analog Converter (DAC) Section, Added

Figure 54 and Figure 55, Renumbered Subsequent Figures ..... 22

Changes to Ordering Guide .......................................................... 33

3/07—Revision 0: Initial Version