https://devzone.nordicsemi.com/f/nordic-q-a/24543/nrf52-calibration-task-issuesHi, I&#39;m running an ADC sampling every 8msec, sampling the output value of an op-amp as well as a reference voltage. I subtract the two in firmware. I was implementing the NRF_DRV_SAADC_EVT_CALIBRATEDONE task before starting a data capture session.en-USTelligent Community 13Tue, 22 Aug 2017 06:37:15 GMThttps://devzone.nordicsemi.com/thread/96615?ContentTypeID=1Tue, 22 Aug 2017 06:37:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a2ff2447-6eff-4e46-86f0-b807ad3bf3bdJ&#248;rgen Holmefjord<p>How did you perform this test? Please have a look at <a href="https://devzone.nordicsemi.com/question/157716/questions-around-saadc-offset-calibration/?comment=158970#comment-158970">this comment</a>.</p><div style="clear:both;"></div>