AVR-Chat

>
>>     That makes it even more interesting.... Have you used it at that speed
>> and got real 8 bit's precision ???
>
>        Yes, not a problem. As stated in the datasheet.

Well.. They say you can go faster if you don't need 10 bit accuracy, but they never give any guidance on how fast the accuracy degrades above nominal, which is another reason I've never bothered with it.  I don't like treading off the guaranteed specs. Something about needing thousands and thousands of boards to all work right off the production line.