Preliminary Technical Data
TABLE OF CONTENTS
Functional Block Diagram .............................................................. 3
Coarse gain register.................................................................... ꢀꢂ
Fine gain register ........................................................................ ꢀ1
offset register............................................................................... ꢀ1
AD5744/64 Features....................................................................... ꢀꢀ
Analog Output Control ............................................................. ꢀꢀ
Digital Offset and Gain Control............................................... ꢀꢀ
Programmable Short-Circuit protection................................. ꢀꢀ
Digital I/O Port........................................................................... ꢀꢀ
Temperature Sensor ................................................................... ꢀꢀ
Local ground offset adjust......................................................... ꢀꢀ
applications information ............................................................... ꢀ3
typical operating circuit............................................................. ꢀ3
layout guidelines......................................................................... ꢀ4
Isolated interface ........................................................................ ꢀ4
microprocessor interfacing ....................................................... ꢀ4
Evaluation board ........................................................................ ꢀ6
Outline Dimensions....................................................................... ꢀ7
Ordering Guide .......................................................................... ꢀ7
Specifications..................................................................................... 4
AC Performance Characteristics................................................ 6
Timing Characteristics ................................................................ 7
Absolute Maximum Ratings.......................................................... 1ꢂ
ESD Caution................................................................................ 1ꢂ
Pin Configuration and Function Descriptions........................... 11
Terminology .................................................................................... 13
typical performance characteristics ............................................. 15
General Description....................................................................... 16
dac architecture........................................................................... 16
Reference Buffers........................................................................ 16
Serial interface ............................................................................ 16
LDAC
Simultaneous Updating ꢁia
transfer function......................................................................... 18
CLR
.......................................... 17
Asynchronous Clear (
)....................................................... 18
Function Register ....................................................................... 19
DAta register ............................................................................... ꢀꢂ
REVISION HISTORY
Revision PrA 15-Nov-ꢂ4: Preliminary ꢁersion
Rev. PrA 15-Nov-04| Page 2 of 27