https://devzone.nordicsemi.com/f/nordic-q-a/117955/ain-to-8-bit-accuracy-to-reduce-the-leakage-currentI refer to and the answer answer given by AI referring me to you. I need the lithium battery only to about 8-bit accuracy to reduce the leakage current. Please provide the recalculated values for R1, R2 and Cext, and the new reduced leakage currenten-USTelligent Community 13Tue, 14 Jan 2025 08:35:31 GMThttps://devzone.nordicsemi.com/thread/518238?ContentTypeID=1Tue, 14 Jan 2025 08:35:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:819feadc-b046-4776-b087-7c25726e04b1Priyanka<p>Hi,<br /><br /></p> <p>According to the blog, you should be able to use the same resistances of 4M<span>Ω and 10MΩ respectively, or you could even use higher resistances like 8MΩ and 20MΩ.&nbsp;</span></p> <p><span>From the blog, you can calculate Cext like:</span></p> <p><strong>Cext = Csample * (2 ^ your bit resolution)</strong></p> <p>So your Cext = Csample * 2^8 = 640pF. You can use any standard value, say 680pF.</p> <p>And your maximum leakage current should now be 4.2 / (8MΩ + 20MΩ) = 150nA</p> <p>Regards,<br />Priyanka</p> <p><code>&nbsp;</code></p><div style="clear:both;"></div>