Datasheet

AD5381 Data Sheet
Rev. D | Page 2 of 40
TABLE OF CONTENTS
General Description ......................................................................... 3
Specifications ..................................................................................... 4 
AD5381-5 Specifications ............................................................. 4
AD5381-3 Specifications ............................................................. 6
AC Characteristics ........................................................................ 7
Timing Characteristics ..................................................................... 8
Serial Interface Timing ................................................................ 8
I
2
C Serial Interface Timing ........................................................ 10
Parallel Interface Timing ........................................................... 11
Absolute Maximum Ratings .......................................................... 13
ESD Caution ................................................................................ 13
Pin Configuration and Function Descriptions ........................... 14
Terminology .................................................................................... 17
Typical Performance Characteristics ........................................... 18
Functional Description .................................................................. 21
DAC Architecture—General ..................................................... 21
Data Decoding ............................................................................ 21
On-Chip Special Function Registers (SFR) ............................ 22
SFR Commands .......................................................................... 22
Hardware Functions ....................................................................... 25
Reset Function ............................................................................ 25
Asynchronous Clear Function .................................................. 25
BUSY
and
LDAC
Functions...................................................... 25
FIFO Operation in Parallel Mode ............................................ 25
Power-On Reset .......................................................................... 25
Power-Down ............................................................................... 25
Interfaces.......................................................................................... 26
DSP-, SPI-, MICROWIRE-Compatible Serial Interfaces ..... 26
I
2
C Serial Interface ..................................................................... 28
Parallel Interface ......................................................................... 30
Microprocessor Interfacing ....................................................... 31
Application Information ................................................................ 33
Power Supply Decoupling ......................................................... 33
Typical Configuration Circuit .................................................. 33
Monitor Function ....................................................................... 34
Toggle Mode Function ............................................................... 34
Thermal Monitor Function ....................................................... 34
Optical Attenuators .................................................................... 35
Utilizing FIFO ............................................................................. 35
Outline Dimensions ....................................................................... 37
Ordering Guide .......................................................................... 37
REVISION HISTORY
9/12—Rev. C to Rev. D
Changes to Product Title .................................................................. 1
Changes to General Description Section and Table 1 .................. 3
Deleted Table 2; Renumbered Sequentially ................................... 3
5/12—Rev. B to Rev. C
Changes to Features .......................................................................... 1
Changes to Table 3 ............................................................................ 4
Changes to Table 4 ............................................................................ 6
Changes to Output Voltage Settling Time and Slew Rate
Parameters, Table 5 ........................................................................... 7
Changes to t
14
, t
17
, and t
19
Parameters, Table 6 .............................. 8
Changes to Table 9 .......................................................................... 13
Changes to Figure 10, Figure 11, and Figure 14 ......................... 18
Changes to Figure 16 to Figure 18 and Figure 20 ....................... 19
Updated Outline Dimensions and Changes to Ordering Guide .... 37
8/05—Rev. A to Rev. B
Changes to Table 2 ............................................................................. 3
Changes to Specifications Section ................................................... 4
Changes to Absolute Maximum Ratings Section ....................... 13
Changes to Figure 43 ...................................................................... 35
Changes to Ordering Guide .......................................................... 37
6/04—Data Sheet Changed from Rev. 0 to Rev. A
Changes to Ordering Guide ........................................................... 36
5/04—Revision 0: Initial Version