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  • TI Thinks Resolved

INA220: about INA220 precision

Expert 5065 points

Replies: 1

Views: 103

Part Number: INA220

hi dear supporting team,

if without calibration, how about the precision of INA220 on current sensing? tks a lot!  

  • Hi Vera,

    Please keep in mind that the error of any current sense amplifier is affected by circuit conditions such as shunt resistance, current sense range, common-mode voltage, and temperature. To make error calculations easy, we have a tool on the right side of the INA220 product page which shows the RSS (root-sum-of-squares) error for a given set of conditions. You can input specific application values and see the plot of error vs. load current at both room temperature (25°C) and another operating temperature.

    If this answered your question, please click the button "This resolved my issue." Thanks!

    Best regards,

    Ian Williams
    Applications Manager
    Current & Magnetic Sensing

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