https://devzone.nordicsemi.com/f/nordic-q-a/22999/how-to-config-saadcHi. I am using saadc example code or SDK V13 with the following requirements: Voltage input up to 70mV, Resolution: 50uV So I did some modification to support the requirement: Gain: 4, Reference: internal, Resolution: 14en-USTelligent Community 13Thu, 22 Jun 2017 14:42:35 GMThttps://devzone.nordicsemi.com/thread/90492?ContentTypeID=1Thu, 22 Jun 2017 14:42:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2b685940-bfe3-47cb-8af1-ec53d1cabc78J&#248;rgen Holmefjord<p>Hi,</p> <p>Acquisition time is dependent on the Maximum source resistance. Check out <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/saadc.html?cp=2_1_0_36_8#concept_qh3_spp_qr">the documentation</a>.</p> <p>Have a look at <a href="https://devzone.nordicsemi.com/question/86201/saadc-value-error/">this thread</a> about negative results.</p> <p>Best regards,</p> <p>Jørgen</p><div style="clear:both;"></div>