SBOSA30D March   2022  – December 2024 INA241A , INA241B

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 INA241B INA241A1 Input Offset Production DistributionFigure 6-1 INA241A1 Input Offset Production Distribution
INA241A INA241B INA241A3 and INA241A4 Input Offset Production DistributionFigure 6-3 INA241A3 and INA241A4 Input Offset Production Distribution
INA241A INA241B All Gains INA241B Input Offset Production Distribution
Figure 6-5 All Gains INA241B Input Offset Production Distribution
INA241A INA241B Common-Mode Rejection Ratio vs Temperature
INA241A
Figure 6-7 Common-Mode Rejection Ratio vs Temperature
INA241A INA241B Gain vs Frequency
Figure 6-9 Gain vs Frequency
INA241A INA241B INA241A4 and INA241A5 Gain Error Production Distribution
1 % = 1000 m%
Figure 6-11 INA241A4 and INA241A5 Gain Error Production Distribution
INA241A INA241B Gain Error vs Temperature
INA241A
Figure 6-13 Gain Error vs Temperature
INA241A INA241B Power-Supply Rejection Ratio vs Frequency
INA241A
Figure 6-15 Power-Supply Rejection Ratio vs Frequency
INA241A INA241B Input Bias Current vs TemperatureFigure 6-17 Input Bias Current vs Temperature
INA241A INA241B INA241x2 Input Bias Current vs VSENSEFigure 6-19 INA241x2 Input Bias Current vs VSENSE
INA241A INA241B INA241x5 Input Bias Current vs VSENSE
Figure 6-21 INA241x5 Input Bias Current vs VSENSE
INA241A INA241B Output Voltage vs Output Current
VS = 5V to 20V
Figure 6-23 Output Voltage vs Output Current
INA241A INA241B Swing to Supply vs Temperature
RL = 10kΩ to GND
Figure 6-25 Swing to Supply vs Temperature
INA241A INA241B Input Referred Noise vs FrequencyFigure 6-27 Input Referred Noise vs Frequency
INA241A INA241B Short-Circuit Current vs Temperature
Figure 6-29 Short-Circuit Current vs Temperature
INA241A INA241B Quiescent Current vs Supply Voltage
VREF1 = VREF2 = 0V, VSENSE = 0V
Figure 6-31 Quiescent Current vs Supply Voltage
INA241A INA241B Common-Mode Voltage Fast Transient Pulse
VCM = -5V to 110V, VSENSE = 0V
Figure 6-33 Common-Mode Voltage Fast Transient Pulse
INA241A INA241B Large Step Response
INA241A4
Figure 6-35 Large Step Response
INA241A INA241B Brownout RecoveryFigure 6-37 Brownout Recovery
INA241A INA241B INA241A2 Input Offset Production DistributionFigure 6-2 INA241A2 Input Offset Production Distribution
INA241A INA241B INA241A5 Input Offset Production DistributionFigure 6-4 INA241A5 Input Offset Production Distribution
INA241A INA241B Input Offset Voltage vs Temperature
INA241A
Figure 6-6 Input Offset Voltage vs Temperature
INA241A INA241B Common-Mode Rejection Ratio vs Frequency
INA241A
Figure 6-8 Common-Mode Rejection Ratio vs Frequency
INA241A INA241B INA241A1, INA241A2 and INA241A3 Gain Error Production Distribution
1 % = 1000 m%
Figure 6-10 INA241A1, INA241A2 and INA241A3 Gain Error Production Distribution
INA241A INA241B All Gains INA241B Gain Error Production Distribution
1 % = 1000 m%
Figure 6-12 All Gains INA241B Gain Error Production Distribution
INA241A INA241B Power-Supply Rejection Ratio vs Temperature
INA241A
Figure 6-14 Power-Supply Rejection Ratio vs Temperature
INA241A INA241B Input Bias Current vs Common-Mode Voltage
VSENSE = 0V
Figure 6-16 Input Bias Current vs Common-Mode Voltage
INA241A INA241B INA241x1 Input Bias Current vs VSENSEFigure 6-18 INA241x1 Input Bias Current vs VSENSE
INA241A INA241B INA241x3 and INA241x4 Input Bias Current vs VSENSEFigure 6-20 INA241x3 and INA241x4 Input Bias Current vs VSENSE
INA241A INA241B Output Voltage vs Output Current
VS = 2.7V
Figure 6-22 Output Voltage vs Output Current
INA241A INA241B Output Impedance vs Frequency
Figure 6-24 Output Impedance vs Frequency
INA241A INA241B Swing to GND vs Temperature
VREF1 = VREF2 = 0V, VSENSE = 0V RL = 10kΩ to GND
Figure 6-26 Swing to GND vs Temperature
INA241A INA241B 0.1Hz to 10Hz Voltage NoiseFigure 6-28 0.1Hz to 10Hz Voltage Noise
INA241A INA241B Quiescent Current vs Temperature
VSENSE = 0V
Figure 6-30 Quiescent Current vs Temperature
INA241A INA241B Quiescent Current vs Common-Mode Voltage
Figure 6-32 Quiescent Current vs Common-Mode Voltage
INA241A INA241B Small Step Response
INA241A4
Figure 6-34 Small Step Response
INA241A INA241B Start-Up Response
Figure 6-36 Start-Up Response