Hi,

I'm wanting to measure a current with a 12F675.  I want to have a
low-side sense resistor and measure it directly with the ADC.  Of
course, when building a current sensor, it saves power to use a
low-value sense resistor, which makes a small full-scale voltage.  I
plan to compensate for this by setting Vref to a low value.  But I'm
not seeing anything in the datasheet to tell me how low I can go, or
what problems I will see if I go too low.  Noise?  Fixed offset?  Do
others have experiences with this?  Am I looking in the wrong place?

Regards,
Mark
markrages@gmail.com
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