Difference between operation modes and 8/10/12-bit resolution in SAADC of nrf54l15

RE: Difference between operation modes and 8/10/12-bit resolution in SAADC of nrf54l15

Edvin — Wed, 09 Apr 2025 08:58:46 GMT

It is lacking the sample rate number for 8 bit, but it is possible to set it in 8 bit mode:

https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/saadc.html#ariaid-title53

BR,

Edvin

RE: Difference between operation modes and 8/10/12-bit resolution in SAADC of nrf54l15

Bhavya Mathukiya — Tue, 08 Apr 2025 14:52:37 GMT

Thank you Edvin for the response. So as per data sheet there no any operation mode to get 8 bit resolution?

RE: Difference between operation modes and 8/10/12-bit resolution in SAADC of nrf54l15

Edvin — Tue, 08 Apr 2025 13:05:45 GMT

Hello Bhavya,

The three modes indicates the resolution that you will get. If a really high sample rate is important for you, while the accuracy is not, then it would make sense to use 10 bit, but if accuracy is more important than speed, then you can use 12 bit, or even 14-bit (requires oversampling, meaning that it will take many samples at 12 bit, to give an average value in 14-bit).

Best regards,

Edvin