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FDC2214

JW@EBV
Prodigy 20 points

Hi TI

Some simple questions.

How much is the input capacitance?

In the EVM we tried to remove C (33pF) but still see around 35pF - is this parasitic input capacitance I see here?

Last but least what is maximum coil tat can be placed on the input? (18uF?)

Thanks in advance.

JW

  • 0
    TI__Expert 6480 points

    Hi JW,

    The maximum input capacitance is 250nF at 10kHz with a 1mH inductor.

    Yes, that would be due to parasitic capacitance.

    There is no set maximum coil that can be placed on the input as long as the sensor frequency still falls within 10kHz to 10MHz.

    Thanks,

    Rachel