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DRV5055: How to measure SNR

Atsushi Hirai
Expert 4950 points
Part Number: DRV5055

Hi team,

Is there any introduction material for SNR measurement for hall IC?

Should we put a termination or buffer at the output when we measure the SNR of DRV5055?

Regards,

  • +1
    TI__Expert 7950 points

    Hi Hirai-san,

    Typical values for output referred noise are specified in the DRV5055 datasheet. As noted, you can lower the noise with an RC low pass filter if the full device bandwidth is not needed. Taking an average of samples can also help.

    More information can be found in section 8.1.3

    Best regards,

    Jesse