This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

SAADC very high noise.

Hardware: nrf52 DK Software: SDK v13

I want to use SAADC to sample some analog data (main function of my device), but It seems to be noisy. In attachment spreadsheet with chart and recorded data.

Reference = VDD/4, input = VDD, gain = 1/5, sampling triggered by app_timer with interval 200 ms.

Is it normall for nrf52 to have as much noise as I have?

Spreadsheet

Related