Data Sheet

ADA4522-1/ADA4522-

2/ADA4522-4

analog.com

Rev I 3 of 48

TABLE OF CONTENTS

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

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

Pin Connection Diagram ...........................................................................................................................................................................2

Specifications.............................................................................................................................................................................................5

Absolute Maximum Ratings ....................................................................................................................................................................14

Thermal Resistance.............................................................................................................................................................................14

Power Sequencing ..............................................................................................................................................................................14

ESD Caution.........................................................................................................................................................................................14

Pin Configurations and Function Descriptions......................................................................................................................................15

Typical Performance Characteristics .....................................................................................................................................................17

Theory of Operation ................................................................................................................................................................................28

On-Chip Input EMI Filter and Clamp Circuit ......................................................................................................................................29

Thermal Shutdown .............................................................................................................................................................................29

Input Protection ..................................................................................................................................................................................30

Single-Supply and Rail-to-Rail Output ..............................................................................................................................................30

Large Signal Transient Response.......................................................................................................................................................31

Case 1...............................................................................................................................................................................................31

Case 2...............................................................................................................................................................................................32

Noise Considerations..........................................................................................................................................................................32

1/f Noise ..........................................................................................................................................................................................32

Source Resistance...........................................................................................................................................................................33

Residual Ripple ...............................................................................................................................................................................33

Current Noise Density.....................................................................................................................................................................35

EMI Rejection Ratio .............................................................................................................................................................................35

Capacitive Load Stability....................................................................................................................................................................36

Applications Information ........................................................................................................................................................................37

Single-Supply Instrumentation Amplifier..........................................................................................................................................37

Load Cell/Strain Gauge Sensor Signal Conditioning Using the ADA4522-2 ....................................................................................38

Precision Low-Side Current Shunt Sensor ........................................................................................................................................39

Printed Circuit Board Layout..............................................................................................................................................................40

Comparator Operation .......................................................................................................................................................................40

Use of Large Source Resistance .........................................................................................................................................................42