EVAL-AD5765EBZ Просмотр технического описания (PDF) - Analog Devices

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EVAL-AD5765EBZ

Complete Quad, 16-Bit, High Accuracy, Serial Input, ±5 V DAC

Analog Devices 

AD5765

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Functional Block Diagram .............................................................. 3

Specifications..................................................................................... 4

AC Performance Characteristics ................................................ 6

Timing Characteristics ................................................................ 7

Absolute Maximum Ratings.......................................................... 10

Thermal Resistance .................................................................... 10

ESD Caution................................................................................ 10

Pin Configuration and Function Descriptions........................... 11

Typical Performance Characteristics ........................................... 13

Terminology .................................................................................... 16

Theory of Operation ...................................................................... 17

DAC Architecture....................................................................... 17

Reference Buffers........................................................................ 17

Serial Interface ............................................................................ 17

Simultaneous Updating via LDAC........................................... 18

Transfer Function ....................................................................... 19

Asynchronous Clear (CLR)....................................................... 19

Function Register ....................................................................... 20

REVISION HISTORY

10/11—Rev. B to Rev. C

Changed 50 MHz to 30 MHz ....................................... Throughout

Changes to t1, t2, and t3 Parameters, Table 4 .................................. 7

7/11—Rev. A to Rev. B

Changed 30 MHz to 50 MHz Throughout.................................... 1

Changes to t1, t2, and t3 Parameters, Table 4 .................................. 7

Changes to Table 21........................................................................ 25

Changes to Ordering Guide .......................................................... 27

10/09—Rev. 0 to Rev. A

Deleted Endnote 1, Table 2.............................................................. 4

Deleted Endnote 1, Table 3.............................................................. 6

Deleted Endnote 1, Table 4.............................................................. 7

Changes to t6 Parameter, Table 4 .................................................... 7

1/09—Revision 0: Initial Version

Data Sheet

Data Register ............................................................................... 20

Coarse Gain Register ................................................................. 20

Fine Gain Register ...................................................................... 21

Offset Register ............................................................................ 21

Offset and Gain Adjustment Worked Example...................... 22

Design Features............................................................................... 23

Analog Output Control ............................................................. 23

Digital Offset and Gain Control............................................... 23

Programmable Short-Circuit Protection ................................ 23

Digital I/O Port........................................................................... 23

Die Temperature Sensor ............................................................ 23

Local-Ground-Offset Adjustment ........................................... 23

Power-On Status ......................................................................... 24

Applications Information .............................................................. 25

Typical Operating Circuit ......................................................... 25

Precision Voltage Reference Selection..................................... 25

Layout Guidelines........................................................................... 26

Galvanically Isolated Interface ................................................. 26

Microprocessor Interfacing....................................................... 26

Outline Dimensions ....................................................................... 27

Ordering Guide .......................................................................... 27

Rev. C | Page 2 of 28

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