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  • Case ID: 345029
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nRF5340 ADC resolution vs conversion time

Wolfgang R

Hi all,

do different settings of SAADC RESOLUTION register affect Conversion Time tCONV?
I cannot find any dependency - the only value given for tCONV is 2 µs typ (7.29.12.1 SAADC Electrical Specification in PS v1.6).

If tCONV is independent of RESOLUTION: what would be the benefit of using less then max RESOLUTION?

Regards,
Wolfgang

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    Hi,

    No, for the 52/53 series, the settings of SAADC RESOLUTION register does not have much affect on the conversion time tCONV ( typically it's around 2us). So your benefit would be the reduced data size and processing requirements, not increased sampling rate or lower latency.

    Though for the 54 series, this is different and the tCONV is lesser.

    Priyanka

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  • 0

    Hi,

    No, for the 52/53 series, the settings of SAADC RESOLUTION register does not have much affect on the conversion time tCONV ( typically it's around 2us). So your benefit would be the reduced data size and processing requirements, not increased sampling rate or lower latency.

    Though for the 54 series, this is different and the tCONV is lesser.

    Priyanka

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