Sorry Vasile, I mispelled your name,

I forgot to mention that the TI chip has an ARM core and two ADC that can r=
un simultaneously,
so you could acquire data fairly fast too.

Regards,
Jean-Paul
AC9GH

=20
> On Oct 15, 2015, at 1:39 PM, embedded systems <piclist9@gmail.com> wrote:
>=20
> Sure, multiplexing is not a problem. Fortunately temperature variation is
> slow.
> But if I'll go to simultaneous sampling with an external ADC ?
>=20
> On Thu, Oct 15, 2015 at 7:23 PM, Mike Hord <mike.hord@gmail.com> wrote:
>=20
>> Everything looks like a PSOC to me, lately. :-)
>>=20
>> Multiplexing a PSoC5LP ADC to 25 channels at a 10Hz refresh rate is
>> trivial.
>> Sending that data back across USB is only slightly less so, depending on
>> what the other end looks like.
>>=20
>> Mike
>>=20
>> On Thu, Oct 15, 2015 at 10:06 AM, embedded systems <piclist9@gmail.com>
>> wrote:
>>=20
>>> Hi all,
>>> I need a microcontroller with a lot of A2D and USB interface. I want to
>>> read 25 RTDs with a refresh rate of about one/100mS. Maybe PIC18LF45K50=
?
>>> Any better choice? Maybe Atmel?
>>>=20
>>> How would you approach this?
>>>=20
>>> thx,
>>> Vasile
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>>=20
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