https://devzone.nordicsemi.com/f/nordic-q-a/44516/configuring-a-specific-adc-channel-differently-or-pselnHey, I have PSELP of the ADC configured to read 4 values. now I want to configure an ADC channel differently than the excising 4 channels. So can I configure the 5th channel in PSELP differently or can I use PSELN and configure it differently? How canen-USTelligent Community 13Tue, 12 Mar 2019 14:16:49 GMThttps://devzone.nordicsemi.com/thread/175707?ContentTypeID=1Tue, 12 Mar 2019 14:16:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b0f05639-c128-4630-aa9b-b8a381c15d79Jared<p>Hi,</p> <p>You can configure each channel differently. PSELN should be used when you want to measure negative values or you use differential measurement.&nbsp;</p> <p>I don&#39;t think i understand the question, but see the <a href="https://www.nordicsemi.com/DocLib/Content/Product_Spec/nRF52840/latest/saadc?850#saadc_frontpage">product specification</a> on how to read the values from the ADC.</p> <p>best regards</p> <p>Jared</p><div style="clear:both;"></div>