AVR-Chat

At 10:48 PM 11/2/2004, David Jones wrote:


> >>> yahoo@barello.net 03/11/2004 2:28:15 pm >>>
> >Ok, I checked the data sheet.  I couldn't find anything regarding the
> >bandgap reference on the tiny26.  Where is it?
>
>It's under "Electrical Characteristics" - "ADC Characteristics" - "Vint
>- Internal Voltage Reference"
>It shows 2.3V to 2.7, with 2.56 nominal. That's a +/-5% error over the
>full temperature range. That's pretty crap, any $1 voltage reference
>will do better.

8 bit resolution is about 0.5%.. :-P