AD7818ARZ-REEL7 Просмотр технического описания (PDF) - Analog Devices

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AD7818ARZ-REEL7

Dual, Low Power CMOS, Analog Front End with DSP Microcomputer

Analog Devices 

AD7817/AD7818

TABLE OF CONTENTS

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

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

Functional Block Diagrams............................................................. 1

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

Product Highlights ........................................................................... 1

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

Specifications..................................................................................... 3

Timing Characteristics ................................................................ 6

Absolute Maximum Ratings............................................................ 7

ESD Caution.................................................................................. 7

Pin Configurations and Function Descriptions ........................... 8

Terminology .................................................................................... 10

Control Byte .................................................................................... 11

Circuit Information.................................................................... 12

REVISION HISTORY

10/12—Rev. C to Rev. D

Deleted AD7816..................................................................Universal

Changes to Format .............................................................Universal

Deleted Figure 15; Renumbered Sequentially............................. 14

Updated Outline Dimensions ....................................................... 19

Changes to Ordering Guide .......................................................... 20

Data Sheet

Converter Details ....................................................................... 12

Typical Connection Diagram ................................................... 12

Analog Inputs.............................................................................. 12

On-Chip Reference .................................................................... 13

ADC Transfer Function............................................................. 13

Temperature Measurement ....................................................... 14

Temperature Measurement Error Due to Reference Error... 14

Self-Heating Considerations ..................................................... 14

Operating Modes........................................................................ 15

Power vs. Throughput................................................................ 17

AD7817 Serial Interface ............................................................. 17

AD7818 Serial Interface Mode ................................................. 18

Outline Dimensions ....................................................................... 19

Ordering Guide .......................................................................... 20

9/04—Rev. B to Rev. C

Changes to Ordering Guide .............................................................6

Changes to Operating Modes Section and Figure 16 ................ 13

Changes to Figure 17...................................................................... 14

Changes to AD7817 Serial Interface, Read Operation Section

and Figure 20................................................................................... 15

Changes to Figure 21...................................................................... 16

Rev. D | Page 2 of 20

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