SBOSA29A June   2020  – November 2023 INA281

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Pin Configuration and Functions
  6. Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Amplifier Input Common-Mode Signal
        1. 6.3.1.1 Input-Signal Bandwidth
        2. 6.3.1.2 Low Input Bias Current
        3. 6.3.1.3 Low VSENSE Operation
        4. 6.3.1.4 Wide Fixed Gain Output
        5. 6.3.1.5 Wide Supply Range
    4. 6.4 Device Functional Modes
      1. 6.4.1 Unidirectional Operation
      2. 6.4.2 High Signal Throughput
  8. Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 RSENSE and Device Gain Selection
      2. 7.1.2 Input Filtering
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Overload Recovery With Negative VSENSE
      3. 7.2.3 Application Curve
  9. Power Supply Recommendations
  10. Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics

All specifications at TA = 25 °C, VS = 5 V, VSENSE = VIN+ – VIN– = 0.5 V / Gain, VCM = VIN– = 48 V, unless otherwise noted.

GUID-732E636E-AB44-4659-BBD7-5BDFF5A062A0-low.gifFigure 5-1 Common-Mode Rejection Ratio vs Temperature
GUID-F7751B22-AF81-4F84-A5E0-7D10076E2911-low.gifFigure 5-3 Gain vs Frequency
GUID-84C5E8D7-6F7E-450B-8D20-E996ED4D43FA-low.gif
VSENSE = 0 V
Figure 5-5 Input Bias Current vs Common-Mode Voltage
GUID-F24E8883-4781-4DFC-9022-D39D9F2E0E59-low.gifFigure 5-7 Input Bias Current vs VSENSE, A1 devices
GUID-98AD7D6C-B1FD-4425-B574-C4D0D511479D-low.gif

 

Figure 5-9 Input Bias Current vs VSENSE, A4 and A5 devices
GUID-B0038431-C446-4E59-9ADC-407A0EC471F2-low.gif
VS = 5 V
Figure 5-11 Output Voltage vs Output Current
GUID-D7AAB405-0429-4AEF-A1FA-0E85C97DAC4C-low.gifFigure 5-13 Output Impedance vs Frequency
GUID-4A6DF698-C1DC-44F4-BD17-696A1101BA71-low.gifFigure 5-15 Swing to GND vs Temperature
GUID-BE99E5A5-9865-4AA5-876B-2E6057983D49-low.gifFigure 5-17 Input Referred Noise
GUID-1158DB81-079F-4B23-899E-CBCD3861470F-low.gifFigure 5-19 Quiescent Current vs Temperature
GUID-4CAA5AF3-D443-45CE-B686-0C36398B31E1-low.gifFigure 5-21 Quiescent Current vs Supply Voltage
GUID-64AB537F-1C2B-46EE-8AE9-43D7D28107CC-low.gifFigure 5-23 Common-Mode Voltage Fast Transient Pulse
GUID-63D24187-1DEB-48C6-A023-1B202A22C132-low.gifFigure 5-25 Start-Up Response
GUID-97D5B13C-307F-4152-BBB9-7A9A5D60E61F-low.gifFigure 5-2 Common-Mode Rejection Ratio vs Frequency
GUID-C1528049-473A-496D-816B-CBA250497E65-low.gifFigure 5-4 Gain Error vs Temperature
GUID-43D0170F-FE83-4C1F-92B4-CBB89372F900-low.gif

 

Figure 5-6 Input Bias Current vs Temperature
GUID-AF15EE35-76C7-474F-9DBA-8BD7D5DBE2B4-low.gifFigure 5-8 Input Bias Current vs VSENSE, A2 and A3 devices
GUID-58456C84-6884-4635-8D61-886ECDB61BCB-low.gif
VS = 2.7 V
Figure 5-10 Output Voltage vs Output Current
GUID-1DC4A70B-B664-4386-8E29-74348EF99C9D-low.gif
VS = 20 V
Figure 5-12 Output Voltage vs Output Current
GUID-387A33C4-762C-4CF6-8542-8D515DF55F13-low.gifFigure 5-14 Swing to Supply vs Temperature
GUID-8277614C-2CA1-49F3-AE76-97758C797DEB-low.gifFigure 5-16 Input Referred Noise vs Frequency
GUID-188500D6-FB85-4CB1-BF65-FDBF509A87BA-low.gifFigure 5-18 Quiescent Current vs Output Voltage
GUID-C952EF55-D68B-4C65-ADCC-9A9B05497EDF-low.gifFigure 5-20 Short-Circuit Current vs Temperature
GUID-D63402E8-CD02-49C9-8779-9F89AEABD5CC-low.gifFigure 5-22 Quiescent Current vs Common-Mode Voltage
GUID-B23683F3-4518-4B4D-AA22-D50FD78C7E21-low.gifFigure 5-24 INA281x3 Step Response
GUID-05ECDC37-84CC-4D39-82CF-F388C55DA93F-low.gifFigure 5-26 Supply Transient Response