Datasheet

AD5382 Data Sheet
Rev. C | Page 2 of 40
TABLE OF CONTENTS
General Description ......................................................................... 3
Specifications ..................................................................................... 4
AD5382-5 Specifications ............................................................. 4
AD5382-3 Specifications ............................................................. 6
AC Characteristics ........................................................................ 7
Timing Characteristics ..................................................................... 8
SPI-, QSPI-, MICROWIRE-, or DSP-Compatible Serial
Interface ......................................................................................... 8
I
2
C Serial Interface ...................................................................... 10
Parallel Interface ......................................................................... 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
AD5382 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 ....................................................... 35
AD5382 in a MEMS-Based Optical Switch ............................ 35
Optical Attenuators .................................................................... 36
Outline Dimensions ....................................................................... 37
Ordering Guide .......................................................................... 37
REVISION HISTORY
10/12—Rev. B to Rev. C
Changes to Title and Features Section ........................................... 1
Changes to General Description and Table 1 ............................... 3
Deleted Table 2; Renumbered Sequentially................................... 3
Changes to Table 2 ............................................................................ 4
Changes to Table 3 ............................................................................ 6
Changes to Output Voltage Settling Time and Slew Rate
Parameters, Table 4 ........................................................................... 7
Changes to t
14
, t
17
, and t
19
Parameters, Table 5 .............................. 8
Change to t
18
Parameter, Table 7 ................................................... 11
Changes to Table 8 and ESD Caution Section ............................ 13
Changes to Figure 10, Figure 11, and Figure 14; Deleted
Figure 13; Renumbered Sequentially ........................................... 18
Changes to Figure 16, Figure 18, and Figure 19 ......................... 19
Change to Table 13 ......................................................................... 22
Updated Outline Dimensions ....................................................... 37
4/10—Rev. A to Rev. B
Changes to Table 18 ....................................................................... 24
Changes to Ordering Guide .......................................................... 37
3/05—Rev. 0 to Rev. A
Changes to Specifications ................................................................. 4
Changes to Figure 43 ...................................................................... 35
5/04—Revision 0: Initial Version