Datasheet

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
I
2
C 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 θ
JA
Thermal Impedance, WLCSP Parameter, Table 6 ... 10
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