AD5380 Analog Devices, AD5380 Datasheet - Page 2

• Manufacturer Part Number: AD5380
• Description: 40-Channel 14-Bit 3 V/5 V Single-Supply Voltage-Output DAC
• Manufacturer: Analog Devices

Specifications of AD5380

• Resolution (bits): 14bit
• Dac Update Rate: 125kSPS
• Dac Settling Time: 8µs
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Par,Ser,SPI

AD5380
General Description ......................................................................... 3
Specifications..................................................................................... 4
Timing Characteristics..................................................................... 8
Absolute Maximum Ratings.......................................................... 13
Pin Configuration and Function Descriptions........................... 14
Terminology .................................................................................... 17
Typical Performance Characteristics ........................................... 18
Functional Description .................................................................. 21
Hardware Functions....................................................................... 25
REVISION HISTORY
6/05—Rev. 0 to Rev. A
Changes to Specifications ................................................................ 3
Changes to Terminology................................................................ 17
Changes to Table 18........................................................................ 24
Changes to Figure 43...................................................................... 35
5/04—Revision 0: Initial Version
TABLE OF CONTENTS
AD5380-5 Specifications ............................................................. 4
AD5380-3 Specifications ............................................................. 6
AC Characteristics........................................................................ 7
Serial Interface .............................................................................. 8
I
Parallel Interface ......................................................................... 11
ESD Caution................................................................................ 13
DAC Architecture—General..................................................... 21
Data Decoding ............................................................................ 21
On-Chip Special Function Registers (SFR) ............................ 22
SFR Commands .......................................................................... 22
Reset Function ............................................................................ 25
2
C Serial Interface...................................................................... 10
Rev. A | Page 2 of 40
AD5380 Interfaces.......................................................................... 26
Application Information................................................................ 33
Outline Dimensions ....................................................................... 38
Asynchronous Clear Function.................................................. 25
BUSY and LDAC Functions...................................................... 25
FIFO Operation in Parallel Mode ............................................ 25
Power-On Reset.......................................................................... 25
Power-Down ............................................................................... 25
DSP-, SPI-, Microwire-Compatible Serial Interfaces ............ 26
I
Parallel Interface......................................................................... 30
Microprocessor Interfacing....................................................... 31
Power Supply Decoupling ......................................................... 33
Typical Configuration Circuit .................................................. 33
AD5380 Monitor Function ....................................................... 34
Toggle Mode Function............................................................... 34
Thermal Monitor Function....................................................... 35
AD5380 in a MEMS Based Optical Switch............................. 35
Optical Attenuators.................................................................... 36
Utilizing the AD5380 FIFO ...................................................... 37
Ordering Guide .......................................................................... 38
2
C Serial Interface ..................................................................... 28