In a recent blog post on omzlo.com, [Alain] explains how they found a bug in the Arduino SAMD21 analogRead() code which causes the output to be offset by between 25 mV and 57 mV. For a 12-bit ADC ...

In the usual sense, a quantizer transforms an analog signal (with an ... accomplish this by just using an Arduino Due, which has a 12-bit A/D converter (almost, because it has a lower reference ...