AVR-Chat

--- In AVR-Chat@yahoogroups.com, "Steven Hodge" <stevehodge@...> 
wrote:

> Can I ... input to Vref a voltage
> reference value equal to the maximum
> of what I need to measure, say 15 V,
> even though that is well above AVcc?

No.

> Or does the spec "maximum" truly
> imply that Vref cannot, under any
> circumstance, be > AVcc?

Yes.

> If so, does that mean the only
> solution to my problem is an
> external voltage divider? 

Yes.  Is that so bad?

Graham.