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INA240: INA240 Gain Characteristics at Vs = 3.3 V

Julia Johnson
Prodigy 10 points

Part Number: INA240

The electrical characteristics table for this part specifies

Gain Error of 0.05% nominal, 0.20% max when the condition GND + 50 mV ≤ VOUT ≤ VS – 200 mV is met.

This table is specified to TA=25C, VS=5V.

Does the gain error change for a VS=3.3V part? When VS=3.3 VDC does the Gain Error of 0.20% hold.

  • 0
    TI__Mastermind 20060 points

    Hello Julia, 

    Thank you for your post. 

    The specified max gain error at room temperature only applies to the 5V supply voltage condition. 

    That being said, you should see comparable error at 3.3V if you adhere to the linear range of the output of GND + 50 mV ≤ VOUT ≤ VS – 200 mV.

    I hope this helps, 

    Joe