AD7621(Rev0) 데이터 시트보기 (PDF) - Analog Devices

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AD7621
(Rev.:Rev0)

16-Bit, 2 LSB INL, 3 MSPS PulSAR® ADC

Analog Devices 

AD7621

TABLE OF CONTENTS

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

Timing Specifications....................................................................... 5

Serial Clock Timing Specifications ............................................ 6

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

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

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

Terminology .................................................................................... 11

Typical Performance Characteristics ........................................... 12

Theory of Operation ...................................................................... 15

Circuit Information.................................................................... 15

Converter Operation.................................................................. 15

Modes of Operation ................................................................... 15

Transfer Functions...................................................................... 16

Typical Connection Diagram ................................................... 17

Analog Inputs.............................................................................. 17

Driver Amplifier Choice............................................................ 17

REVISION HISTORY

5/05 — Revision 0: Initial Version

Voltage Reference Input ............................................................ 18

Power Supply............................................................................... 19

Power Dissipation vs. Throughput .......................................... 20

Conversion Control ................................................................... 20

Interfaces.......................................................................................... 21

Digital Interface.......................................................................... 21

Parallel Interface......................................................................... 21

Serial Interface ............................................................................ 22

Master Serial Interface............................................................... 22

Slave Serial Interface .................................................................. 24

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

Application ...................................................................................... 27

Layout .......................................................................................... 27

Evaluating the AD7621 Performance ...................................... 27

Outline Dimensions ....................................................................... 28

Ordering Guide .......................................................................... 29

Rev. 0 | Page 2 of 32

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