It's good and bad. Nice that they've filtered AVCC pretty heavily-- 360Hz corner frequency-- lots of microcontroller boards don't.
Less nice that the ADC scale will be affected by power supply offset, though that all depends upon how "good" the board 3V3 is. The bandgap and error amplifier on the DC-DC converter IC is good at least-- max +/- 1%.
Comments
It's good and bad. Nice that they've filtered AVCC pretty heavily-- 360Hz corner frequency-- lots of microcontroller boards don't.
Less nice that the ADC scale will be affected by power supply offset, though that all depends upon how "good" the board 3V3 is. The bandgap and error amplifier on the DC-DC converter IC is good at least-- max +/- 1%.