SBOSA30C March   2022  – October 2023 INA241A , INA241B

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Revision History
  6. Device Comparison
  7. Pin Configuration and Functions
  8. 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
  9. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Amplifier Input Common-Mode Signal
        1. 8.3.1.1 Enhanced PWM Rejection Operation
        2. 8.3.1.2 Input-Signal Bandwidth
        3. 8.3.1.3 Low Input Bias Current
        4. 8.3.1.4 Low VSENSE Operation
        5. 8.3.1.5 Wide Fixed Gain Output
        6. 8.3.1.6 Wide Supply Range
    4. 8.4 Device Functional Modes
      1. 8.4.1 Adjusting the Output With the Reference Pins
      2. 8.4.2 Reference Pin Connections for Unidirectional Current Measurements
        1. 8.4.2.1 Ground Referenced Output
        2. 8.4.2.2 VS Referenced Output
      3. 8.4.3 Reference Pin Connections for Bidirectional Current Measurements
        1. 8.4.3.1 Output Set to External Reference Voltage
        2. 8.4.3.2 Output Set to Mid-Supply Voltage
        3. 8.4.3.3 Output Set to Mid-External Reference
        4. 8.4.3.4 Output Set Using Resistor Divider
      4. 8.4.4 High Signal Throughput
  10. Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 RSENSE and Device Gain Selection
    2. 9.2 Typical Application
      1. 9.2.1 Inline Motor Current-Sense Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
    3. 9.3 Power Supply Recommendations
      1. 9.3.1 Power Supply Decoupling
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Examples
  11. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  12. 11Mechanical, 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, VSENSE = VIN+ – VIN–, VCM = VIN– = 48 V, and VREF1 = VREF2 = VS / 2 (unless otherwise noted)

GUID-20220801-SS0I-XVZS-JG6Z-NKKZHQZG2BKH-low.svgFigure 7-1 INA241A1 Input Offset Production Distribution
GUID-20220801-SS0I-P19D-PQND-GLG2SVK99XQ0-low.svgFigure 7-3 INA241A3 and INA241A4 Input Offset Production Distribution
GUID-20220801-SS0I-9C5S-NR3M-Z00V7WQ9CVSS-low.svg
Figure 7-5 All Gains INA241B Input Offset Production Distribution
GUID-20220723-SS0I-HBLR-TKCZ-BRWHPS7JBG4W-low.svg
INA241A
Figure 7-7 Common-Mode Rejection Ratio vs Temperature
GUID-20220723-SS0I-TNRD-WJJW-CN7MSSQVLR9G-low.svg
Figure 7-9 Gain vs Frequency
GUID-20220815-SS0I-TGDL-3KTP-JT6QW5X7Q9SV-low.svg
1 % = 1000 m%
Figure 7-11 INA241A4 and INA241A5 Gain Error Production Distribution
GUID-20220723-SS0I-XFQF-CXGR-JDJSXM9SQLV5-low.svg
INA241A
Figure 7-13 Gain Error vs Temperature
GUID-20220723-SS0I-CHXH-3JDJ-WTC35MTJR41P-low.svg
INA241A
Figure 7-15 Power-Supply Rejection Ratio vs Frequency
GUID-20220808-SS0I-GVZB-NKZV-D2NWGJZHRW2F-low.svgFigure 7-17 Input Bias Current vs Temperature
GUID-20220812-SS0I-NV7G-CTRQ-MJLZNB7WBDHC-low.svgFigure 7-19 INA241x2 Input Bias Current vs VSENSE
GUID-20220812-SS0I-FRXB-KSPW-1MMZN0TQWHHZ-low.svg
Figure 7-21 INA241x5 Input Bias Current vs VSENSE
GUID-20220723-SS0I-2PPC-CKXX-CCMSJL9MPM9B-low.svg
VS = 5 V to 20 V
Figure 7-23 Output Voltage vs Output Current
GUID-20220723-SS0I-2XQK-G9KG-W5ZVKRVGWS8S-low.svg
RL = 10 kΩ to GND
Figure 7-25 Swing to Supply vs Temperature
GUID-20220723-SS0I-HWCB-LSTM-DGZRHMFGP2PG-low.svgFigure 7-27 Input Referred Noise vs Frequency
GUID-20220723-SS0I-PBF7-VBSR-CJZCVRNCK5NC-low.svg
Figure 7-29 Short-Circuit Current vs Temperature
GUID-20220808-SS0I-1FRG-8RK7-WZMD01JLSQTZ-low.svg
VREF1 = VREF2 = 0 V, VSENSE = 0 V
Figure 7-31 Quiescent Current vs Supply Voltage
GUID-20220815-SS0I-ND6C-CLLW-MCJVQTBVLBL6-low.svg
VCM = -5 V to 110 V, VSENSE = 0 V
Figure 7-33 Common-Mode Voltage Fast Transient Pulse
GUID-20220723-SS0I-NHHN-P8T0-NZB4M9X6NBQ0-low.svg
INA241A4
Figure 7-35 Large Step Response
GUID-20220723-SS0I-101D-R4F0-RJM4TGM4FT6Z-low.svgFigure 7-37 Brownout Recovery
GUID-20220801-SS0I-QNFV-NKHR-SG4HTQ0DD7HC-low.svgFigure 7-2 INA241A2 Input Offset Production Distribution
GUID-20220801-SS0I-DGDW-CRWB-ZTFF7MFFLV0Z-low.svgFigure 7-4 INA241A5 Input Offset Production Distribution
GUID-20220722-SS0I-CP9N-PMBX-QBRCLDTBC03X-low.svg
INA241A
Figure 7-6 Input Offset Voltage vs Temperature
GUID-20220723-SS0I-PW7G-RQ4L-B6FKZ0RLXCRZ-low.svg
INA241A
Figure 7-8 Common-Mode Rejection Ratio vs Frequency
GUID-20220815-SS0I-464W-3KVR-FST9Q79GN4ZW-low.svg
1 % = 1000 m%
Figure 7-10 INA241A1, INA241A2 and INA241A3 Gain Error Production Distribution
GUID-20220801-SS0I-HD8G-HHBG-Q7MMJLTRHPJR-low.svg
1 % = 1000 m%
Figure 7-12 All Gains INA241B Gain Error Production Distribution
GUID-20220723-SS0I-CD49-M71R-F0QGHVJJZZTW-low.svg
INA241A
Figure 7-14 Power-Supply Rejection Ratio vs Temperature
GUID-20220808-SS0I-SVTF-CPXN-5QV1GP0B3VDV-low.svg
VSENSE = 0 V
Figure 7-16 Input Bias Current vs Common-Mode Voltage
GUID-20220812-SS0I-TRRK-WZGR-NQJFGJJZG04D-low.svgFigure 7-18 INA241x1 Input Bias Current vs VSENSE
GUID-20220812-SS0I-B1W2-XMQV-KSVFQ4Q7193W-low.svgFigure 7-20 INA241x3 and INA241x4 Input Bias Current vs VSENSE
GUID-20220723-SS0I-NHNH-SMH2-VTGDHWW216HQ-low.svg
VS = 2.7 V
Figure 7-22 Output Voltage vs Output Current
GUID-20220723-SS0I-3NFQ-SXFS-GCSKPFG7GTBD-low.svg
Figure 7-24 Output Impedance vs Frequency
GUID-20220723-SS0I-QDSD-L3ZN-Q97GNG4CXGHH-low.svg
VREF1 = VREF2 = 0 V, VSENSE = 0 V RL = 10 kΩ to GND
Figure 7-26 Swing to GND vs Temperature
GUID-20220723-SS0I-QNPW-GLZQ-SP9N7SMVT0VR-low.svgFigure 7-28 0.1 Hz to 10 Hz Voltage Noise
GUID-20220723-SS0I-PMD1-VWTP-V0H6BKZCJRFM-low.svg
VSENSE = 0 V
Figure 7-30 Quiescent Current vs Temperature
GUID-20220808-SS0I-KJD6-34DG-BSQDLLSJFF7C-low.svg
Figure 7-32 Quiescent Current vs Common-Mode Voltage
GUID-20220723-SS0I-SGQD-MGRC-LBDML1RWNS3V-low.svg
INA241A4
Figure 7-34 Small Step Response
GUID-20220723-SS0I-DHPH-PFLW-16GCDLGFJ41W-low.svg
Figure 7-36 Start-Up Response