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 ...

The first circuit doubles the resolution of an ADC, in this case, that of the Atmel chip in an Arduino, by converting its output from an integer to a signed integer. It performs this task with a ...

The ADC driver acts as a buffer and a low-pass filter to reduce overall system noise. As signals travel through the traces of a printed-circuit board (PCB) and long cables, system noise ...

A new fully featured Arduino development board has been created called the Prestissimo Uno+ which is now available to back via Kickstarter with earlybird pledges available from just $20 ...

Power is 7mW/Msample/s for the ADC and ~1mA for the buffer. Because of the iPassive substrate, ADI will be offering custom versions if the quantities are high enough (>50-100,000, said Tzscheetzsch).