AD652AQ Просмотр технического описания (PDF) - Analog Devices

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AD652AQ

Monolithic Synchronous Voltage-to-Frequency Converter

Analog Devices 

AD652

TABLE OF CONTENTS

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

Absolute Maximum Ratings............................................................ 5

ESD Caution.................................................................................. 5

Definitions of Specifications ....................................................... 5

Theory of Operation ........................................................................ 6

Overrange ...................................................................................... 8

SVFC Connection for Dual Supply, Positive Input Voltages .. 9

SVFC Connections for Negative Input Voltages ...................... 9

SVFC Connection for Bipolar Input Voltages ........................ 10

PLCC Connections..................................................................... 11

Gain and Offset Calibration...................................................... 11

Gain Performance ...................................................................... 12

Reference Noise .......................................................................... 12

Digital Interfacing Considerations........................................... 12

REVISION HISTORY

5/04—Data Sheet Changed from Rev. B to Rev. C

Updated Format..............................................................Universal

Changes to Gain and Offset Calibration section.................... 11

Updated Outline Dimensions ................................................... 25

Changes to Ordering Guide ...................................................... 26

2/00—Data Sheet Changed from Rev. A to Rev. B

Component Selection ................................................................ 12

Digital Ground............................................................................ 13

Single-Supply Operation ........................................................... 14

Frequency-to-Voltage Converter ............................................. 15

Decoupling and Grounding...................................................... 16

Frequency Output Multiplier.................................................... 17

Single-Line Multiplexed Data Transmission .......................... 18

Isolated Front End...................................................................... 22

A-to-D Conversion .................................................................... 22

Delta Modulator ......................................................................... 23

Bridge Transducer Interface...................................................... 24

Outline Dimensions ....................................................................... 25

Ordering Guide............................................................................... 26

Rev. C | Page 2 of 28

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