SBOSA31D February   2023  – June 2025 INA241A-Q1 , INA241B-Q1

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 Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Amplifier Input Common-Mode Signal
        1. 7.3.1.1 Enhanced PWM Rejection Operation
        2. 7.3.1.2 Input-Signal Bandwidth
        3. 7.3.1.3 Low Input Bias Current
        4. 7.3.1.4 Low VSENSE Operation
        5. 7.3.1.5 Wide Fixed Gain Output
        6. 7.3.1.6 Wide Supply Range
    4. 7.4 Device Functional Modes
      1. 7.4.1 Adjusting the Output With the Reference Pins
      2. 7.4.2 Reference Pin Connections for Unidirectional Current Measurements
        1. 7.4.2.1 Ground Referenced Output
        2. 7.4.2.2 VS Referenced Output
      3. 7.4.3 Reference Pin Connections for Bidirectional Current Measurements
        1. 7.4.3.1 Output Set to External Reference Voltage
        2. 7.4.3.2 Output Set to Mid-Supply Voltage
        3. 7.4.3.3 Output Set to Mid-External Reference
        4. 7.4.3.4 Output Set Using Resistor Divider
      4. 7.4.4 High Signal Throughput
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 RSENSE and Device Gain Selection
    2. 8.2 Typical Application
      1. 8.2.1 Inline Motor Current-Sense Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Power Supply Decoupling
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Examples
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

6.6 Typical Characteristics

at TA = 25°C, VS = 5V, VSENSE = VIN+ – VIN–, VCM = VIN– = 48V, and VREF1 = VREF2 = VS / 2 (unless otherwise noted)

INA241A-Q1 INA241B-Q1 INA241A1-Q1 Input Offset Production DistributionFigure 6-1 INA241A1-Q1 Input Offset Production Distribution
INA241A-Q1 INA241B-Q1 INA241A3-Q1 and INA241A4-Q1 Input Offset Production DistributionFigure 6-3 INA241A3-Q1 and INA241A4-Q1 Input Offset Production Distribution
INA241A-Q1 INA241B-Q1 All Gains INA241A-Q1 Input Offset Production Distribution
Figure 6-5 All Gains INA241A-Q1 Input Offset Production Distribution
INA241A-Q1 INA241B-Q1 Common-Mode Rejection Ratio vs Temperature
INA241A-Q1
Figure 6-7 Common-Mode Rejection Ratio vs Temperature
INA241A-Q1 INA241B-Q1 Gain vs Frequency
Figure 6-9 Gain vs Frequency
INA241A-Q1 INA241B-Q1 INA241A4-Q1 and INA241A5-Q1 Gain Error Production Distribution
1 % = 1000 m%
Figure 6-11 INA241A4-Q1 and INA241A5-Q1 Gain Error Production Distribution
INA241A-Q1 INA241B-Q1 Gain Error vs Temperature
INA241A-Q1
Figure 6-13 Gain Error vs Temperature
INA241A-Q1 INA241B-Q1 Power-Supply Rejection Ratio vs Frequency
INA241A-Q1
Figure 6-15 Power-Supply Rejection Ratio vs Frequency
INA241A-Q1 INA241B-Q1 Input Bias Current vs TemperatureFigure 6-17 Input Bias Current vs Temperature
INA241A-Q1 INA241B-Q1 INA241x1-Q1 Input Bias Current vs VSENSEFigure 6-19 INA241x1-Q1 Input Bias Current vs VSENSE
INA241A-Q1 INA241B-Q1 INA241x5-Q1 Input Bias Current vs VSENSE
Figure 6-21 INA241x5-Q1 Input Bias Current vs VSENSE
INA241A-Q1 INA241B-Q1 Output Voltage vs Output Current
VS = 5V to 20V
Figure 6-23 Output Voltage vs Output Current
INA241A-Q1 INA241B-Q1 Swing to Supply vs Temperature
RL = 10kΩ to GND
Figure 6-25 Swing to Supply vs Temperature
INA241A-Q1 INA241B-Q1 Input Referred Noise vs FrequencyFigure 6-27 Input Referred Noise vs Frequency
INA241A-Q1 INA241B-Q1 Short-Circuit Current vs Temperature
Figure 6-29 Short-Circuit Current vs Temperature
INA241A-Q1 INA241B-Q1 Quiescent Current vs Supply Voltage
VREF1 = VREF2 = 0V, VSENSE = 0V
Figure 6-31 Quiescent Current vs Supply Voltage
INA241A-Q1 INA241B-Q1 Common-Mode Voltage Fast Transient Pulse
VCM = -5V to 110V, VSENSE = 0V
Figure 6-33 Common-Mode Voltage Fast Transient Pulse
INA241A-Q1 INA241B-Q1 Large Step Response
INA241x4-Q1
Figure 6-35 Large Step Response
INA241A-Q1 INA241B-Q1 Brownout RecoveryFigure 6-37 Brownout Recovery
INA241A-Q1 INA241B-Q1 INA241A2-Q1 Input Offset Production DistributionFigure 6-2 INA241A2-Q1 Input Offset Production Distribution
INA241A-Q1 INA241B-Q1 INA241A5-Q1 Input Offset Production DistributionFigure 6-4 INA241A5-Q1 Input Offset Production Distribution
INA241A-Q1 INA241B-Q1 Input Offset Voltage vs Temperature
INA241A-Q1
Figure 6-6 Input Offset Voltage vs Temperature
INA241A-Q1 INA241B-Q1 Common-Mode Rejection Ratio vs Frequency
INA241A-Q1
Figure 6-8 Common-Mode Rejection Ratio vs Frequency
INA241A-Q1 INA241B-Q1 INA241A1-Q1, INA241A2-Q1, INA241A3-Q1 Gain Error Production Distribution
1 % = 1000 m%
Figure 6-10 INA241A1-Q1, INA241A2-Q1, INA241A3-Q1 Gain Error Production Distribution
INA241A-Q1 INA241B-Q1 All Gains INA241B-Q1 Gain Error Production Distribution
1 % = 1000 m%
Figure 6-12 All Gains INA241B-Q1 Gain Error Production Distribution
INA241A-Q1 INA241B-Q1 Power-Supply Rejection Ratio vs Temperature
INA241A-Q1
Figure 6-14 Power-Supply Rejection Ratio vs Temperature
INA241A-Q1 INA241B-Q1 Input Bias Current vs Common-Mode Voltage
VSENSE = 0V
Figure 6-16 Input Bias Current vs Common-Mode Voltage
INA241A-Q1 INA241B-Q1 INA241x-Q1 Input Bias Current vs VSENSEFigure 6-18 INA241x-Q1 Input Bias Current vs VSENSE
INA241A-Q1 INA241B-Q1 INA241x3-Q1 and INA241x4-Q1 Input Bias Current vs VSENSEFigure 6-20 INA241x3-Q1 and INA241x4-Q1 Input Bias Current vs VSENSE
INA241A-Q1 INA241B-Q1 Output Voltage vs Output Current
VS = 2.7V
Figure 6-22 Output Voltage vs Output Current
INA241A-Q1 INA241B-Q1 Output Impedance vs Frequency
Figure 6-24 Output Impedance vs Frequency
INA241A-Q1 INA241B-Q1 Swing to GND vs Temperature
VREF1 = VREF2 = 0V, VSENSE = 0V RL = 10kΩ to GND
Figure 6-26 Swing to GND vs Temperature
INA241A-Q1 INA241B-Q1 0.1Hz to 10Hz Voltage NoiseFigure 6-28 0.1Hz to 10Hz Voltage Noise
INA241A-Q1 INA241B-Q1 Quiescent Current vs Temperature
VSENSE = 0V
Figure 6-30 Quiescent Current vs Temperature
INA241A-Q1 INA241B-Q1 Quiescent Current vs Common-Mode Voltage
Figure 6-32 Quiescent Current vs Common-Mode Voltage
INA241A-Q1 INA241B-Q1 Small Step Response
INA241x4-Q1
Figure 6-34 Small Step Response
INA241A-Q1 INA241B-Q1 Start-Up Response
Figure 6-36 Start-Up Response