topic Re: ADD out of spec in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/ADD-out-of-spec/m-p/530084#M9939 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by williamjsell on Sat Feb 27 15:15:05 MST 2016</STRONG><BR /><SPAN>Anyone, or am I the only one who thinks the ADC in this processor is lousy?</SPAN></BODY></HTML> Wed, 15 Jun 2016 19:29:23 GMT lpcware 2016-06-15T19:29:23Z ADD out of spec https://community.nxp.com/t5/LPC-Microcontrollers/ADD-out-of-spec/m-p/530083#M9938 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by williamjsell on Sat Feb 20 13:55:59 MST 2016</STRONG><BR /><SPAN>We are using the lpc11u68 device.&nbsp; Using a function generator generating a triangle wave to test the adc, we see an ~8 count jump every 400 counts or so..&nbsp; The spec indicates the transfer curve should be between 2-3 counts.&nbsp; We tested two parts with the same performance.&nbsp; So the adc performance is down to 2^9 with this 8 count error.&nbsp; Not very good; anyone else seen this performance?</SPAN></BODY></HTML> Wed, 15 Jun 2016 19:29:22 GMT https://community.nxp.com/t5/LPC-Microcontrollers/ADD-out-of-spec/m-p/530083#M9938 lpcware 2016-06-15T19:29:22Z Re: ADD out of spec https://community.nxp.com/t5/LPC-Microcontrollers/ADD-out-of-spec/m-p/530084#M9939 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by williamjsell on Sat Feb 27 15:15:05 MST 2016</STRONG><BR /><SPAN>Anyone, or am I the only one who thinks the ADC in this processor is lousy?</SPAN></BODY></HTML> Wed, 15 Jun 2016 19:29:23 GMT https://community.nxp.com/t5/LPC-Microcontrollers/ADD-out-of-spec/m-p/530084#M9939 lpcware 2016-06-15T19:29:23Z Re: ADD out of spec https://community.nxp.com/t5/LPC-Microcontrollers/ADD-out-of-spec/m-p/530085#M9940 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by starblue on Sun Feb 28 08:36:21 MST 2016</STRONG><BR /><SPAN>I would guess something is wrong in your setup (e.g. bad input signal, bad timing), but your description is rather vague.</SPAN><BR /><SPAN>I've done static measurements with 10-bit ADCs in other controllers, and they were quite good.</SPAN></BODY></HTML> Wed, 15 Jun 2016 19:29:23 GMT https://community.nxp.com/t5/LPC-Microcontrollers/ADD-out-of-spec/m-p/530085#M9940 lpcware 2016-06-15T19:29:23Z