SBOS728A
February 2015 – March 2021
INA225-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings (1)
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 Diagram
7.3
Feature Description
7.3.1
Selecting A Shunt Resistor
7.3.1.1
Selecting A Current-Sense Resistor Example
7.3.1.2
Optimizing Power Dissipation versus Measurement Accuracy
7.3.2
Programmable Gain Select
7.4
Device Functional Modes
7.4.1
Input Filtering
7.4.2
Shutting Down the Device
7.4.3
Using the Device with Common-Mode Transients Above 36 V
8
Applications and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Microcontroller-Configured Gain Selection
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curve
8.2.2
Unidirectional Operation
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.3
Application Curve
8.2.3
Bidirectional Operation
8.2.3.1
Design Requirements
8.2.3.2
Detailed Design Procedure
8.2.3.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DGK|8
MPDS028E
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbos728a_oa
sbos728a_pm
8.2.2
Unidirectional Operation
Figure 8-3
Unidirectional Application Schematic