AD7492AR-REEL 데이터 시트보기 (PDF) - Analog Devices

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AD7492AR-REEL

1.25 MSPS, 16 mW Internal REF and CLK, 12-Bit Parallel ADC

Analog Devices 

AD7492

TABLE OF CONTENTS

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

Functional Block Diagram .............................................................. 1

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

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

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

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

AD7492-5 ...................................................................................... 3

AD7492/AD7492-4 ...................................................................... 4

Timing Specifications .................................................................. 6

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

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

Pin Configuration and Function Descriptions............................. 8

Typical Peformance Characteristics ............................................. 10

Terminology .................................................................................... 12

Circuit Description......................................................................... 13

Converter Operation.................................................................. 13

Typical Connection Diagram ................................................... 13

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

AC Acquisition Time ................................................................. 14

DC Acquisition Time................................................................. 14

Analog Input ............................................................................... 14

Parallel Interface......................................................................... 14

Operating Modes........................................................................ 14

Power-Up..................................................................................... 16

Grounding and Layout .............................................................. 18

Power Supplies ............................................................................ 18

Microprocessor Interfacing....................................................... 18

Outline Dimensions ....................................................................... 21

Ordering Guide .......................................................................... 21

REVISION HISTORY

5/06—Rev. 0 to Rev. A

Added AD7492-4................................................................Universal

Changes to Table 4............................................................................ 8

Updated Outline Dimensions ....................................................... 22

Changes to Ordering Guide .......................................................... 22

1/01—Revision 0: Initial Version

Rev. A | Page 2 of 24

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