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2 page 
AD5762R Preliminary Technical Data Rev. PrA | Page 2 of 33 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Functional Block Diagram .............................................................. 3 Specifications..................................................................................... 4 AC Performance Characteristic...................................................... 6 Timing Characteristics..................................................................... 7 Absolute Maximum Ratings.......................................................... 10 ESD Caution................................................................................ 10 Pin Configuration and Function Descriptions........................... 11 Terminology .................................................................................... 13 Typical Performance Characteristics ........................................... 15 Theory of Operation ...................................................................... 21 DAC Architecture....................................................................... 21 Reference Buffers........................................................................ 21 Serial Interface ............................................................................ 21 Simultaneous Updating via LDAC........................................... 22 Transfer Function ....................................................................... 23 Asynchronous Clear (CLR)....................................................... 23 Function Register ....................................................................... 24 Data Register............................................................................... 25 Coarse Gain Register ................................................................. 25 Fine Gain Register ...................................................................... 25 Offset Register ............................................................................ 25 Offset and Gain Adjustment Worked Example...................... 27 AD5762R Features.......................................................................... 28 Analog Output Control ............................................................. 28 Digital Offset and Gain Control............................................... 28 Programmable Short-Circuit Protection ................................ 28 Digital I/O Port........................................................................... 28 die Temperature Sensor............................................................. 28 Local Ground Offset Adjust...................................................... 28 Applications Information .............................................................. 29 Typical Operating Circuit ......................................................... 29 Layout Guidelines........................................................................... 30 Galvanically Isolated Interface ................................................. 30 Microprocessor Interfacing....................................................... 30 Evaluation Board ........................................................................ 32 Outline Dimensions ....................................................................... 33 Ordering Guide .......................................................................... 33 REVISION HISTORY Preliminary Revision PrA December 10, 2007 |
