https://devzone.nordicsemi.com/f/nordic-q-a/25381/high-idle-current-using-saadc-low-powerI have a 3 channel setup on my SAADC module, which I sample according to a LFCLK timer. I notice after the first called to nrf_drv_saadc_sample() and receipt of the ADC results, it seems the HFCLK is not shutting off. The idle current is approximatelyen-USTelligent Community 13Mon, 25 Sep 2017 13:40:03 GMThttps://devzone.nordicsemi.com/thread/100026?ContentTypeID=1Mon, 25 Sep 2017 13:40:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:55a78aab-3a52-4a70-a2cd-fd758e86d81bMartinBL<p>Hi,</p> <ol> <li>Do you have any other active peripherals? Do you for example transfer ADC data via TWI or something?</li> <li>To use the FPU you have to specifically enable it and I don&#39;t think 400 uA matches up with any FPU issues I have seen before.</li> </ol><div style="clear:both;"></div>