ADC Minimum input Voltage

Created Wed, 05 Dec 2012 00:42:14 +0000 by Jaydie

Jaydie

Wed, 05 Dec 2012 00:42:14 +0000

Just a quick question for UNO32, what is the smallest voltage does the ADC can be read with max accuracy?

Is it VRef/10-bit?

Thank.

EmbeddedMan

Wed, 05 Dec 2012 02:34:58 +0000

Yes, that's correct. Vref is 3.3V, so 1 count on the ADC = 3.22mv

*Brian