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
MPDS028D
Thermal pad, mechanical data (Package|Pins)
DGK|8
QFND519
Orderable Information
sbos728a_oa
sbos728a_pm
1
Features
AEC-Q100 qualified:
Temperature grade 1: –40 °C to +125 °C
HBM ESD classification 2
CDM ESD classification C4B
Functional Safety-Capable
Documentation available to aid functional safety system design
Wide common-mode range: 0 V to 36 V
Offset voltage: ±150 μV (maximum, all gains)
Offset voltage drift: 0.5 μV/°C (maximum)
Gain accuracy, over temperature (maximum):
25 V/V, 50 V/V: ±0.15%
100 V/V: ±0.2%
200 V/V: ±0.3%
10-ppm/°C gain drift
Bandwidth: 250 kHz (gain = 25 V/V)
Programmable gains:
G1 = 25 V/V
G2 = 50 V/V
G3 = 100 V/V
G4 = 200 V/V
Quiescent current: 350 μA (maximum)
Package: 8-pin VSSOP
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