topic FXOS8700CQ - lnoise in Sensors https://community.nxp.com/t5/Sensors/FXOS8700CQ-lnoise/m-p/705454#M4541 <HTML><HEAD></HEAD><BODY><P>Hello.</P><P>In register&nbsp; <SPAN class="">CTRL_REG1</SPAN>&nbsp;of the FXOS8700CQ acceleration sensor, there is the option lnoise. The manual states the following...</P><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P>Reduced noise and full-scale range mode (analog gain times 2).<BR />0 – Normal mode<BR />1 – Reduced noise mode; Note that the FSR setting is restricted to ±2 g or ±4 g mode. This feature<BR />cannot be used in ±8 g mode.</P></BLOCKQUOTE><P></P><P>When arming that bit at a range of +-2g, is the resolution of&nbsp; <SPAN class="">0.244 mg/LSB&nbsp;stays the same or it is being halved (0.122 mg/LSB)?</SPAN></P><P><SPAN class="">Does this reduced noise mode has to do anything with oversampling (OSR)?</SPAN></P><P><SPAN class=""></SPAN></P><P><SPAN class="">Thank you very much.</SPAN></P></BODY></HTML> Tue, 03 Feb 2026 22:22:54 GMT ekalyvio 2026-02-03T22:22:54Z FXOS8700CQ - lnoise https://community.nxp.com/t5/Sensors/FXOS8700CQ-lnoise/m-p/705454#M4541 <HTML><HEAD></HEAD><BODY><P>Hello.</P><P>In register&nbsp; <SPAN class="">CTRL_REG1</SPAN>&nbsp;of the FXOS8700CQ acceleration sensor, there is the option lnoise. The manual states the following...</P><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P>Reduced noise and full-scale range mode (analog gain times 2).<BR />0 – Normal mode<BR />1 – Reduced noise mode; Note that the FSR setting is restricted to ±2 g or ±4 g mode. This feature<BR />cannot be used in ±8 g mode.</P></BLOCKQUOTE><P></P><P>When arming that bit at a range of +-2g, is the resolution of&nbsp; <SPAN class="">0.244 mg/LSB&nbsp;stays the same or it is being halved (0.122 mg/LSB)?</SPAN></P><P><SPAN class="">Does this reduced noise mode has to do anything with oversampling (OSR)?</SPAN></P><P><SPAN class=""></SPAN></P><P><SPAN class="">Thank you very much.</SPAN></P></BODY></HTML> Tue, 03 Feb 2026 22:22:54 GMT https://community.nxp.com/t5/Sensors/FXOS8700CQ-lnoise/m-p/705454#M4541 ekalyvio 2026-02-03T22:22:54Z Re: FXOS8700CQ - lnoise https://community.nxp.com/t5/Sensors/FXOS8700CQ-lnoise/m-p/705455#M4542 <HTML><HEAD></HEAD><BODY><P>Hello Efthymios,</P><P></P><P>According to the datasheet when the full-scale range is set to 2g, the measurement range is –2 g to +1.999 g, and each count corresponds to 0.244 mg at ±14-bits resolution and it's not affected for the low noise mode. Also, the low-noise accelerometer mode works independently of the oversampling modes.</P><P></P><P>Regards,</P><P>Darío</P></BODY></HTML> Wed, 18 Oct 2017 22:55:29 GMT https://community.nxp.com/t5/Sensors/FXOS8700CQ-lnoise/m-p/705455#M4542 darioarias 2017-10-18T22:55:29Z