AVR-Chat

On Mon, 23 Nov 2009, BobGardner@aol.com wrote:

> Thats a really minimal a/d converter...
> its only 6 bits, doesnt have much range.
> If you had an 8 bit spi d/a converter you
> could use the analog comparator and have
> a nice accuate 8 bit successive approximation
> a/d with a real 0-5V range.

That would mean ordering in DAC chips. But the
solution feels 'chunky'. Using a DAC chip just
so that I can do ADC using the analog comparator?
I'd rather just buy an ADC chip then. But if
I'm going to get additional components anyway,
it would make more sense to me to choose a
different AVR- one that already has an ADC
(or several) built-in.

Thanks for the suggestion, though.

Best,
Marc