https://devzone.nordicsemi.com/f/nordic-q-a/32513/coin-cell-powered-thermometer-please-helpHello all, I want to built a coin cell powered thermometer with NTC thermistor. May I know if I need to regulate the voltage from the coin cell or i can power the nrf52832 and the thermistor directly by the coin cell to give accurate reading? Manyen-USTelligent Community 13Tue, 20 Mar 2018 11:31:48 GMThttps://devzone.nordicsemi.com/thread/125140?ContentTypeID=1Tue, 20 Mar 2018 11:31:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4c7e99b4-2b47-4320-b5cc-cdb74eaa5508haakonsh<p>Hey alan,</p> <p>You can use VDD as a reference voltage to the SAADC, that way you do not need to regulate the voltage over the NTC voltage divider.</p> <p>&nbsp;</p> <p>Cheers,&nbsp;<br />Håkon</p><div style="clear:both;"></div>