AD8231-EVALZ 查看數據表（PDF） - Analog Devices

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AD8231-EVALZ

Zero Drift, Digitally Programmable Instrumentation Amplifier

Analog Devices 

AD8231

TABLE OF CONTENTS

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

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

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

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

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

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

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

Thermal Resistance ...................................................................... 7

Maximum Power Dissipation ..................................................... 7

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

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

Typical Performance Characteristics ............................................. 9

Instrumentation Amplifier Performance Curves..................... 9

Operational Amplifier Performance Curves .......................... 15

Performance Curves Valid for Both Amplifiers ..................... 17

Theory of Operation ...................................................................... 18

REVISION HISTORY

9/07—Rev. 0to Rev. A

Changes to Features and General Description ............................. 1

Changes to Table 2............................................................................ 3

Changes to Table 3............................................................................ 5

Changes to Typical Performance Characteristics Layout............ 9

Inserted Figure 3 to Figure 8; Renumbered Sequentially............ 9

Inserted Figure 9; Renumbered Sequentially.............................. 10

Inserted Figure 16, and Figure 18 to Figure 20; Renumbered

Sequentially ..................................................................................... 11

Inserted Figure 24; Renumbered Sequentially............................ 12

Deleted Figure 28 and Figure 29; Renumbered Sequentially ... 13

Inserted Figure 33 and Figure 34; Renumbered Sequentially... 14

Inserted Figure 41 to Figure 46; Renumbered Sequentially...... 16

Inserted Figure 48; Renumbered Sequentially............................ 17

Changes to Gain Selection Section and Figure 50 ..................... 18

Added Input Protection Section................................................... 19

Added Reducing Noise Section .................................................... 20

Changes to Multiplexing Section.................................................. 21

Added Using the AD8231 with Bipolar Supplies Section ......... 21

Added Sallen Key Filter Section ................................................... 22

Changes to Ordering Guide .......................................................... 23

Amplifier Architecture .............................................................. 18

Gain Selection............................................................................. 18

Reference Terminal .................................................................... 18

Layout .......................................................................................... 19

Input Bias Current Return Path ............................................... 19

Input Protection ......................................................................... 19

RF Interference ........................................................................... 20

Common-Mode Input Voltage Range ..................................... 20

Reducing Noise........................................................................... 20

Applications Information .............................................................. 21

Differential Output .................................................................... 21

Multiplexing................................................................................ 21

Using the AD8231 with Bipolar Supplies................................ 21

Sallen Key Filter.......................................................................... 22

Outline Dimensions ....................................................................... 23

Ordering Guide .......................................................................... 23

5/07—Revision 0: Initial Version

Rev. A | Page 2 of 24

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