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Message

ADC ACCURACY AND NOISE

2005-01-13 by Jose Fuentes

I am trying to make a ohm-meter using Atmega16.  The
problem is that the ADC is reading values that change
all the time (at least the five less significant bits
change all the time).  I think there are several
factors that affect the precision of the ADC.  Some of
these factors are hardware related, an other has to do
with the firmware.  I know the lower the ADC clock is,
the better precision you get.  Also, the AD conversion
can be done in sleep mode.  Any suggestions?

Regards,

Jose


	

	
		
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