AD5382
TABLE OF CONTENTS
General Description......................................................................... 3
Specifications..................................................................................... 4
AD5382-5 Specifications............................................................. 4
AD5382-3 Specifications............................................................. 6
AC Characteristics........................................................................ 7
Timing Characteristics..................................................................... 8
Asynchronous Clear Function.................................................. 25
and Functions...................................................... 25
BUSY
LDAC
FIFO Operation in Parallel Mode............................................ 25
Power-On Reset.......................................................................... 25
Power-Down ............................................................................... 25
AD5382 Interfaces.......................................................................... 26
DSP, SPI, Microwire Compatible Serial Interfaces................. 26
I2C Serial Interface ..................................................................... 28
Parallel Interface......................................................................... 30
Microprocessor Interfacing....................................................... 31
Application Information................................................................ 33
Power Supply Decoupling ......................................................... 33
Typical Configuration Circuit .................................................. 33
AD5382 Monitor Function ....................................................... 34
Toggle Mode Function............................................................... 34
Thermal Monitor Function....................................................... 35
AD5382 in a MEMS Based Optical Switch............................. 35
Optical Attenuators.................................................................... 36
Outline Dimensions....................................................................... 37
Ordering Guide .......................................................................... 37
SPI, QSPI, MICROWIRE, or DSP Compatible Serial
Interface .................................................................................... 8
I2C Serial Interface...................................................................... 10
Parallel Interface......................................................................... 11
Absolute Maximum Ratings.......................................................... 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
REVISION HISTORY
5/04—Revision 0: Initial Version
Rev. 0 | Page 2 of 40
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