SLYS018C April   2018  – April 2020 INA181-Q1 , INA2181-Q1 , INA4181-Q1

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Typical Application Circuit
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
    1.     Pin Functions: INA181-Q1 (Single Channel)
    2.     Pin Functions: INA2181-Q1 (Dual Channel) and INA4181-Q1 (Quad Channel)
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 High Bandwidth and Slew Rate
      2. 8.3.2 Bidirectional Current Monitoring
      3. 8.3.3 Wide Input Common-Mode Voltage Range
      4. 8.3.4 Precise Low-Side Current Sensing
      5. 8.3.5 Rail-to-Rail Output Swing
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Mode
      2. 8.4.2 Unidirectional Mode
      3. 8.4.3 Bidirectional Mode
      4. 8.4.4 Input Differential Overload
      5. 8.4.5 Shutdown Mode
  9. Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Basic Connections
      2. 9.1.2 RSENSE and Device Gain Selection
      3. 9.1.3 Signal Filtering
      4. 9.1.4 Summing Multiple Currents
      5. 9.1.5 Detecting Leakage Currents
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
    1. 10.1 Common-Mode Transients Greater Than 26 V
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 Receiving Notification of Documentation Updates
    5. 12.5 Support Resources
    6. 12.6 Trademarks
    7. 12.7 Electrostatic Discharge Caution
    8. 12.8 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics

at TA = 25°C, VS = 5 V, VREF = VS / 2, and VIN+ = 12 V (unless otherwise noted)
INA181-Q1 INA2181-Q1 INA4181-Q1 D001_SBOS793.gif
Figure 1. Input Offset Voltage Production Distribution A1
INA181-Q1 INA2181-Q1 INA4181-Q1 D003_SBOS793.gif
Figure 3. Input Offset Voltage Production Distribution A3
INA181-Q1 INA2181-Q1 INA4181-Q1 D005_SBOS793.gif
Figure 5. Offset Voltage vs Temperature
INA181-Q1 INA2181-Q1 INA4181-Q1 D007_SBOS793.gif
Figure 7. Common-Mode Rejection Production Distribution A2
INA181-Q1 INA2181-Q1 INA4181-Q1 D009_SBOS793.gif
Figure 9. Common-Mode Rejection Production Distribution A4
INA181-Q1 INA2181-Q1 INA4181-Q1 D011_SBOS793.gif
Figure 11. Gain Error Production Distribution A1
INA181-Q1 INA2181-Q1 INA4181-Q1 D013_SBOS793.gif
Figure 13. Gain Error Production Distribution A3
INA181-Q1 INA2181-Q1 INA4181-Q1 D015_SBOS793.gif
Figure 15. Gain Error vs Temperature
INA181-Q1 INA2181-Q1 INA4181-Q1 D017_SBOS793.gif
Figure 17. Power-Supply Rejection Ratio vs Frequency
INA181-Q1 INA2181-Q1 INA4181-Q1 D019_SBOS793.gif
Figure 19. Output Voltage Swing vs Output Current
INA181-Q1 INA2181-Q1 INA4181-Q1 D021_SBOS793.gif
Supply voltage = 0 V
Figure 21. Input Bias Current vs Common-Mode Voltage (Both Inputs, Shutdown)
INA181-Q1 INA2181-Q1 INA4181-Q1 D023_SBOS793.gif
Figure 23. Quiescent Current vs Temperature (INA181-Q1)
INA181-Q1 INA2181-Q1 INA4181-Q1 D038_SBOS793.gif
Figure 25. Quiescent Current vs Temperature (INA4181-Q1)
INA181-Q1 INA2181-Q1 INA4181-Q1 D035_SBOS793.gif
Figure 27. IQ vs Common-Mode Voltage (INA2181-Q1)
INA181-Q1 INA2181-Q1 INA4181-Q1 D024_SBOS741.gif
Figure 29. Input-Referred Voltage Noise vs Frequency
(A3 Devices)
INA181-Q1 INA2181-Q1 INA4181-Q1 D026_SBOS793.gif
80-mVPP input step
Figure 31. Step Response
INA181-Q1 INA2181-Q1 INA4181-Q1 D028_SBOS793.gif
Figure 33. Inverting Differential Input Overload
INA181-Q1 INA2181-Q1 INA4181-Q1 D030_SBOS793.gif
Figure 35. Start-Up Response
INA181-Q1 INA2181-Q1 INA4181-Q1 D033_SBOS793.gif
Figure 37. Output Impedance vs Frequency
INA181-Q1 INA2181-Q1 INA4181-Q1 D002_SBOS793.gif
Figure 2. Input Offset Voltage Production Distribution A2
INA181-Q1 INA2181-Q1 INA4181-Q1 D004_SBOS793.gif
Figure 4. Input Offset Voltage Production Distribution A4
INA181-Q1 INA2181-Q1 INA4181-Q1 D006_SBOS793.gif
Figure 6. Common-Mode Rejection Production Distribution A1
INA181-Q1 INA2181-Q1 INA4181-Q1 D008_SBOS793.gif
Figure 8. Common-Mode Rejection Production Distribution A3
INA181-Q1 INA2181-Q1 INA4181-Q1 D010_SBOS793.gif
Figure 10. Common-Mode Rejection Ratio vs Temperature
INA181-Q1 INA2181-Q1 INA4181-Q1 D012_SBOS793.gif
Figure 12. Gain Error Production Distribution A2
INA181-Q1 INA2181-Q1 INA4181-Q1 D014_SBOS793.gif
Figure 14. Gain Error Production Distribution A4
INA181-Q1 INA2181-Q1 INA4181-Q1 D016_SBOS793.gif
Figure 16. Gain vs Frequency
INA181-Q1 INA2181-Q1 INA4181-Q1 D018_SBOS793.gif
Figure 18. Common-Mode Rejection Ratio vs Frequency
INA181-Q1 INA2181-Q1 INA4181-Q1 D020_SBOS793.gif
Supply voltage = 5 V
Figure 20. Input Bias Current vs Common-Mode Voltage
INA181-Q1 INA2181-Q1 INA4181-Q1 D022_SBOS793.gif
Figure 22. Input Bias Current vs Temperature
INA181-Q1 INA2181-Q1 INA4181-Q1 D034_SBOS793.gif
Figure 24. Quiescent Current vs Temperature (INA2181-Q1)
INA181-Q1 INA2181-Q1 INA4181-Q1 D031_SBOS793.gif
Figure 26. IQ vs Common-Mode Voltage (INA181-Q1)
INA181-Q1 INA2181-Q1 INA4181-Q1 D039_SBOS741.gif
Figure 28. IQ vs Common-Mode Voltage (INA4181-Q1)
INA181-Q1 INA2181-Q1 INA4181-Q1 D025_SBOS793.gif
Figure 30. 0.1-Hz to 10-Hz Voltage Noise (Referred-to-Input)
INA181-Q1 INA2181-Q1 INA4181-Q1 D027_SBOS793.gif
Figure 32. Common-Mode Voltage Transient Response
INA181-Q1 INA2181-Q1 INA4181-Q1 D029_SBOS793.gif
Figure 34. Noninverting Differential Input Overload
INA181-Q1 INA2181-Q1 INA4181-Q1 D032_SBOS793.gif
Figure 36. Brownout Recovery
INA181-Q1 INA2181-Q1 INA4181-Q1 D034_SBOS741.gif
Figure 38. Channel Separation vs Frequency (INA2181-Q1)