[sdiy] Designing Analog ICs

[Dave Manley]

On Thu 11/09/08 10:37 AM , "David Moylan" dave at westphila.net sent:
> 
> >>> Who's building Dave Smith's current CEM
> (PA397), most obvious choice?>>> It is in the archive
> somewhere>>> here or on AH.
> >>>
> >>> -Dave
> >>
> >> I'll answer my own question: OnChip. They
> don't advertise>> the capability on their website though.
> There's a thread>> on AH from 2007 titled "PolyEvolver Ics
> (and some circuit topology>> drivel)".
> >
> > Are you sure you don't mean On
> Semiconductors?> http://www.onsemi.com/PowerSolutions/content.do?id=16558
> >
> 
> Curtis became OnChip as they moved away from synth oriented designs.

The implication being OnChip has the base array IP that was used
to build the CEM devices, and still has the process running to build them.
The only thing standing in the way of rebuilding new CEM devices is
a business case.  I doubt OnChip would turn down a viable business 
proposition.  Making a few chips for some sdiyers probably doesn't
fall in that category. :-p

Note Dave Smith is buying at least two different parts from OnChip,
the PA397, and a dual VCA chip.  It'll be interesting to look inside
some recent designs (Tempest?) and see if there's anything new.

-Dave