https://devzone.nordicsemi.com/f/nordic-q-a/43322/saadc-input-range-in-differential-modeHello, just a quick question for my understanding: If I use differential mode and have the Vp and Vn pins as an input channel to the SAADC, then may I only supply Vp with positive and Vn with negative voltage, respectively? Thanks, Tamasen-USTelligent Community 13Tue, 05 Feb 2019 15:24:17 GMThttps://devzone.nordicsemi.com/thread/169579?ContentTypeID=1Tue, 05 Feb 2019 15:24:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:58f32426-f667-42f9-8f93-5e4661b569afNewtoM<p>Thank you very much!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/169562?ContentTypeID=1Tue, 05 Feb 2019 14:37:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0e68c299-575c-4aa8-a6f3-a187ad9810ebKenneth<p>You are measuring the difference between the two, so Vn=Vp should give 0.</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/169527?ContentTypeID=1Tue, 05 Feb 2019 13:34:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:86e4743e-5263-41cd-a084-a3aec89f5a4eNewtoM<p>That is, Vp is my highest possible input value and Vn is the input to be measured, where Vn=Vp gives me the maximal (digital) AD value and Vn=0 gives me zero (at least in theory)? </p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/169523?ContentTypeID=1Tue, 05 Feb 2019 13:17:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0fbb0f3d-51fb-422b-b081-b4012088d448Kenneth<p>Hi,</p> <p>Both Vp and Vn must be between GND and VDD, the difference is that Vn is not fixed to GND but can be between GND&lt;Vn&lt;Vp.</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>