SBOS793H April   2017  – November 2023 INA181 , INA2181 , INA4181

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 High Bandwidth and Slew Rate
      2. 7.3.2 Bidirectional Current Monitoring
      3. 7.3.3 Wide Input Common-Mode Voltage Range
      4. 7.3.4 Precise Low-Side Current Sensing
      5. 7.3.5 Rail-to-Rail Output Swing
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Mode
      2. 7.4.2 Unidirectional Mode
      3. 7.4.3 Bidirectional Mode
      4. 7.4.4 Input Differential Overload
      5. 7.4.5 Shutdown Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Basic Connections
      2. 8.1.2 RSENSE and Device Gain Selection
      3. 8.1.3 Signal Filtering
      4. 8.1.4 Summing Multiple Currents
      5. 8.1.5 Detecting Leakage Currents
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Common-Mode Transients Greater Than 26 V
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

10 Revision History

Changes from Revision G (May 2020) to Revision H (November 2023)

  • Updated the numbering format for tables, figures, and cross-references throughout the documentGo
  • Added INA181 6-pin SC70 package to the data sheet Go

Changes from Revision F (March 2019) to Revision G (May 2020)

  • Added INA2181 10-pin WSON package to the data sheetGo

Changes from Revision E (July 2018) to Revision F (March 2019)

  • Added new paragraph regarding phase reversal to end of Input Differential Overload sectionGo
  • Changed Figure 57 to fix pin number typosGo
  • Changed Figure 58 to fix pin number typos Go

Changes from Revision D (March 2018) to Revision E (July 2018)

  • Changed instances of INAx180 to INAx181 (typos)Go

Changes from Revision C (December 2017) to Revision D (March 2018)

  • Changed INA4181 device from preview to production data (active) Go
  • Added new Figure 25 for INA4181Go
  • Added new Figure 28 for INA4181Go
  • Added "other" to first sentence after Figure 49 to clarify channel connection in Summing Multiple Currents sectionGo

Changes from Revision B (November 2017) to Revision C (December 2017)

  • Changed INA2181 device from preview to production data (active)Go
  • Added "Both Inputs" to Figure 21 titleGo
  • Added new Figure 24 for INA2181Go
  • Added new Figure 25 placeholder for INA4181Go
  • Added new Figure 27 for INA2181Go
  • Added new Figure 28 placeholder for INA4181Go
  • Changed Figure 29 and added "(A3 Devices)" to end of titleGo
  • Added new Figure 38 for INA2181Go
  • Changed "less than 150 μV" to "within ±150 μV" regarding offset voltage in Precise Low-Side Current Sensing sectionGo
  • Added text regarding RC filter and reference to application report to note at the bottom of Figure 45 Go
  • Deleted VS from Equation 3 Go
  • Added equation and curve for f-3dB to Figure 48Go
  • Added new content to Summing Multiple Currents section and moved to Application Information sectionGo
  • Added new content to Detecting Leakage Currents section and moved to Application Information sectionGo
  • Added new bullet to Layout Guidelines section Go

Changes from Revision A (August 2017) to Revision B (November 2017)

  • Added INA4181 preview device and associated content to data sheetGo
  • Changed design parameter name in Table 3 from "Accuracy" to "Current sensing error" for clarity Go
  • Changed "RMS" to "RSS" in reference to equation 7 Go

Changes from Revision * (April 2017) to Revision A (August 2017)

  • Added INA2181 preview device and associated content to data sheetGo