Hi All, I am trying to achiever more stable ADC readings and have few plans in mind but I am not sure which one is better can you provide you opinions? Currently I have whole system (Atmega328p on PCB) powered by Switching regulator that provides 3.4V with stable ripple of 40mV at about 5Khz. Avcc …

Cleaner ADC measurements which of these ways is better

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