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INAx181-Q1 Automotive, Bidirectional, Low- and High-Side Voltage Output, Current-Sense Amplifiers
SLYS018F
April 2018 – October 2024
INA181-Q1
,
INA2181-Q1
,
INA4181-Q1
PRODUCTION DATA
CONTENTS
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INAx181-Q1 Automotive, Bidirectional, Low- and High-Side Voltage Output, Current-Sense Amplifiers
1
1
Features
2
Applications
3
Description
4
Device Comparison
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
7.3
Feature Description
7.3.1
High Bandwidth and Slew Rate
7.3.2
Bidirectional Current Monitoring
7.3.3
Wide Input Common-Mode Voltage Range
7.3.4
Precise Low-Side Current Sensing
7.3.5
Rail-to-Rail Output Swing
7.4
Device Functional Modes
7.4.1
Normal Mode
7.4.2
Unidirectional Mode
7.4.3
Bidirectional Mode
7.4.4
Input Differential Overload
7.4.5
Shutdown Mode
8
Application and Implementation
8.1
Application Information
8.1.1
Basic Connections
8.1.2
RSENSE and Device Gain Selection
8.1.3
Signal Filtering
8.1.4
Summing Multiple Currents
8.1.5
Detecting Leakage Currents
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curve
8.3
Power Supply Recommendations
8.3.1
Common-Mode Transients Greater Than 26 V
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Development Support
9.2
Documentation Support
9.2.1
Related Documentation
9.3
Receiving Notification of Documentation Updates
9.4
Support Resources
9.5
Trademarks
9.6
Electrostatic Discharge Caution
9.7
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
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Data Sheet
INAx181-Q1 Automotive, Bidirectional,
Low- and High-Side Voltage Output,
Current-Sense Amplifiers