https://devzone.nordicsemi.com/f/nordic-q-a/56025/nrf52810-saadc-s112---adc-previously-sampled-value-is-affecting-the-next-channelHi everyone, I&#39;m trying to use nRF52810 with SoftDevice S112 to sample five ADC channels. I&#39;m finding this very weird issue, where first channel is showing correct value (i.e. 4050), but then next channels should be around 0-100 range, however theyen-USTelligent Community 13Sat, 28 Dec 2019 22:16:43 GMThttps://devzone.nordicsemi.com/thread/227001?ContentTypeID=1Sat, 28 Dec 2019 22:16:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:688ce48f-d0f5-4ac3-af2e-4532adafed1cArion[quote userid="72713" url="~/f/nordic-q-a/56025/nrf52810-saadc-s112---adc-previously-sampled-value-is-affecting-the-next-channel"]I have tried changing sampling time from min to max, it does not change anything.<br />Also, tried over-sampling, using PPI, triggering manually by timer but the issue still persists.[/quote] <p>Thanks. As I mentioned, changing the sampling time doesn&#39;t seem to help much. Also using over-sampling doesn&#39;t resolve the issue. I guess if it was &quot;issue&quot; with the residual charge in the sampling capacitor, it should go away with increased sampling time or with over-sampling...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/226987?ContentTypeID=1Sat, 28 Dec 2019 13:30:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:365f2380-b1c5-45d6-93b8-b3e3a3eef161Turbo J[quote userid="72713" url="~/f/nordic-q-a/56025/nrf52810-saadc-s112---adc-previously-sampled-value-is-affecting-the-next-channel"]It&#39;s almost as if previously sampled value is affecting the next channel.[/quote] <p>Can happen with very high input resistance (impedance). The sampling capacitor simply keeps (some of) its charge. Try a higher sampling time or show us a complete schematic.</p><div style="clear:both;"></div>