My question is about the differential ADC built into KL series (specifically, I am interested in KL46 and KL28, but I guess the question is generic enough).
Is the differential ADC implemented as doing 2 single ended measurements very quickly after each other, or is there a real differential amplifier somewhere in hardware?
If it is a true differential measurement, then I wonder why the max and min input to the pins is specified as Vss ... 3.6V. In differential measurements, the benefit (among others) is that there can be a DC offset on both of the differential inputs, but it will measure the difference.
Thank you and Best Regards,