https://devzone.nordicsemi.com/f/nordic-q-a/24042/acquisition-time-vs-source-resistance-nrf52Hi guys Given that the sample capacitor is 2.5pF max, the quoted source resistances that are supposed to match the settable sample times seem to be extremely conservative. I have only been able to justify them using a 14bit ADC and trying to settleen-USTelligent Community 13Wed, 16 Aug 2017 09:00:56 GMThttps://devzone.nordicsemi.com/thread/94653?ContentTypeID=1Wed, 16 Aug 2017 09:00:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ce591d39-41c4-43fa-8c3e-21fe66dfb5b0run_ar<p>You can do what Turbo J suggest. But remember that the values in the product specification has to cover the complete temperature range as well as production variations. So if you choose to create a test rig to do measurements you should also make sure you test at the max and min temperatures for your product.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/94654?ContentTypeID=1Thu, 03 Aug 2017 11:25:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:859c8b24-c63a-4b22-aed4-9c7f2649755dTurbo J<p>I would just setup a testing rig and <em>measure</em> the ADC performance and noise figures for different aquisition times.</p><div style="clear:both;"></div>