AD5675

Data Sheet

Rev. B | Page 2 of 26

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

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

 

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

 

AC Characteristics........................................................................ 5

 

Timing Characteristics ................................................................ 5

 

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

 

Thermal Resistance ...................................................................... 7

 

ESD Caution.................................................................................. 7

 

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

 

Typical Performance Characteristics ........................................... 10

 

Terminology .................................................................................... 16

 

Theory of Operation ...................................................................... 18

 

Digital-to-Analog Converter .................................................... 18

 

Transfer Function ....................................................................... 18

 

DAC Architecture....................................................................... 18

 

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

 

Write and Update Commands.................................................. 20

 

I2C Slave Address........................................................................ 20

 

Serial Operation ......................................................................... 20

 

Write Operation.......................................................................... 20

 

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

 

Multiple DAC Readback Sequence .......................................... 21

 

Power-Down Operation ............................................................ 22

 

Load DAC (Hardware LDAC Pin) ........................................... 22

 

LDAC Mask Register ................................................................. 23

 

Hardware Reset (RESET) .......................................................... 24

 

Reset Select Pin (RSTSEL) ........................................................ 24

 

Amplifier Gain Selection on LFCSP Package......................... 24

 

Applications Information .............................................................. 25

 

Power Supply Recommendations............................................. 25

 

Microprocessor Interfacing....................................................... 25

 

AD5675 to ADSP-BF531 Interface........................................... 25

 

Layout Guidelines....................................................................... 25

 

Galvanically Isolated Interface ................................................. 25

 

Outline Dimensions ....................................................................... 26

 

Ordering Guide .......................................................................... 26

 

REVISION HISTORY

8/2016—Rev. A to Rev. B

Change to Output Noise Spectral Density Parameter; Table 3... 5

10/2015—Rev. 0 to Rev. A

Added 20-Lead LFCSP.......................................................Universal

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

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

Change to Table 5 ............................................................................. 7

Added Table 6; Renumbered Sequentially .................................... 9

Change to Figure 4 Caption and Table 6 Title .............................. 8

Added Figure 5; Renumbered Sequentially and Table 7 ............. 9

Change to Figure 19 Caption ........................................................ 12

Change to Figure 33 ....................................................................... 14

Change to Table 8 ........................................................................... 19

Change to Read Operation Section.............................................. 21

Changes to LDAC Mask Register Section and Table 13 ............... 23

Added Amplifier Gain Selection on LFCSP Package Section,

Table 15, and Table 16.................................................................... 24

Added Figure 52, Outline Dimensions........................................ 26

Changes to Ordering Guide .......................................................... 26

1/2015—Revision 0: Initial Version