AVR-Chat

On 29 Jul 2004 at 8:15, David VanHorn wrote:

> You need to connect AVCC (always!), you need to supply an external
> reference, or use VCC for ratiometric measurements (the internal reference
> is pretty dodgy), you need to supply a cap on the ref pin.

	Does the same apply to the ATMEGA8 ADC? I have used the internal
reference without problems.

> Yes, it is successive approximation, at something like 200 kHz.

	You can go up to 1MHz if you only need 8 bit precision.

	Mark Jordan