> I went to an Analog Devices seminar today.  Toward the end of the skit, they
> showed a couple of slides of an 8051 based processor design coupled with a 12
> bit ADC and a 12 bit DAC, with other stuff.

It would be interesting to see the other parts of the spec. Are all
12 bits useful ?

> I know I would like the better ADC on the PIC, but I would like to know what a
ll
> of you think.

It depends on how long you are prepared to wait for the result. The
PIC14000 is pretty good but takes a while, as does any integrating
type.
I haven't given it too much thought, but in reality 8 bits is enough
a lot of the time. The other bits get chewed up in applying gain and
offset in software. Maybe a mixture of say, a 10 bit ADC and an amp
with a couple of digital pots integrated internally.

Putting anything analog on the same slab o' glass as a micro isn't
giving it a nice start in life. I bet you want the same core to run
at 30MHz too. :-)

Steve.

======================================================
Steve Baldwin                Electronic Product Design
TLA Microsystems Ltd         Microcontroller Specialists
PO Box 15-680, New Lynn      http://www.tla.co.nz
Auckland, New Zealand        ph  +64 9 820-2221
email: steveb@tla.co.nz      fax +64 9 820-1929
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