AD5675

Data Sheet

Rev. C | Page 2 of 27

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

Software Reset............................................................................. 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 .......................................................................... 27

REVISION HISTORY

4/2018—Rev. B to Rev. C

Changes to Features Section, General Description Section, and

Figure 1 .............................................................................................. 1

Changes to Specifications Section.................................................. 3

Deleted Endnote 3, Table 2; Renumbered Sequentially .............. 4

Changes to AC Characteristics Section, Timing Characteristics

Section, and Table 3.......................................................................... 5

Changes to Figure 2 and Figure 3................................................... 6

Changes to Table 5 and Thermal Resistance Section................... 7

Changes to Figure 19...................................................................... 12

Changes to Table 9.......................................................................... 19

Changes to Update DAC Register n with Contents of Input

Register n Section and Write to and Update DAC Channel n

(Independent of LDAC) Section................................................... 20

Changes to Power-Down Operation Section.............................. 22

Changes to Hardware Reset (RESET) Section............................ 24

Added Software Reset Section ...................................................... 24

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

Changes to Ordering Guide .......................................................... 27

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