ADD out of spec

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by williamjsell on Sat Feb 20 13:55:59 MST 2016
We are using the lpc11u68 device.  Using a function generator generating a triangle wave to test the adc, we see an ~8 count jump every 400 counts or so..  The spec indicates the transfer curve should be between 2-3 counts.  We tested two parts with the same performance.  So the adc performance is down to 2^9 with this 8 count error.  Not very good; anyone else seen this performance?