AD8421ARMZ-RL 데이터 시트보기 (PDF) - Analog Devices

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AD8421ARMZ-RL

3 nV/√Hz, Low Power Instrumentation Amplifier

Analog Devices 

AD8421

TABLE OF CONTENTS

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

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

Pin Connection Diagram ................................................................ 1

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

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

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

AR and BR Grades........................................................................ 3

ARM and BRM Grades................................................................ 5

Absolute Maximum Ratings............................................................ 8

Thermal Resistance ...................................................................... 8

ESD Caution.................................................................................. 8

Pin Configuration and Function Descriptions............................. 9

Typical Performance Characteristics ........................................... 10

Theory of Operation ...................................................................... 20

Architecture................................................................................. 20

REVISION HISTORY

5/12—Revision 0: Initial Version

Data Sheet

Gain Selection............................................................................. 20

Reference Terminal .................................................................... 21

Input Voltage Range................................................................... 21

Layout .......................................................................................... 21

Input Bias Current Return Path ............................................... 22

Input Voltages Beyond the Supply Rails.................................. 22

Radio Frequency Interference (RFI)........................................ 23

Calculating the Noise of the Input Stage................................. 23

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

Differential Output Configuration .......................................... 25

Driving an ADC ......................................................................... 26

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

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

Rev. 0 | Page 2 of 28

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