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