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Re: ADC circuit help " is this possible "
Simple answer: If full scale =0 - 3.3V, and the adc is 10 bit, LSB = 3.3/1024 = 3.22265mV. I would think you should plan for 1LSB error so you could detect ~6mV worst case. Now there are plenty of debate around here about 1024 vs 1023, but I live in 1024 world
-Bert
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