[sdiy] ADSR Plus - 8 parameters?

[ChristianH]

On Thu, 3 Feb 2011 11:28:07 +0100 Olivier Gillet <ol.gillet at gmail.com> wrote:

> > So, OK, I can do it internally, although the only devices I've got to hand
> > with internal ADC are ATMega8-8PU (8MHz DIP) - where only 6 of the possible
> > 8 ADC channels are available in that package (doh!)  Not sure whether to
> > whittle down to 6 parameters, use the external ADCs or just get different
> > packaged devices.
> 
> Or get a 4051?

As an old fart, it took some time for me to change my traditional way 
of thinking (10 years ago that would have been my first suggestion 
too) - but today it has become more reasonable to just attach an SPI ADC
than to use support chips, which in the end may need glue logic (not in
this case, but the 4051 consumes 3 hardware select bits).

I favour the MCP3208. Comes from PIC world, but works fine with ATMega.
BTW, the MCP4922 is an equally sexy SPI DAC chip, and dirt cheap too.

Christian