Re: Simple multi-channel serial ADC (8-ch)?

Marte Schwarz wrote:

Hi Jörg,


I love the ADuC702x 12 bits resolution and not bad at all. Try it and love it.

But then I have to learn a new uC ;-)


I find it very easy to learn. With winarm package no additional cost, only $30 Minikit with serial download cable or simply samples, ready to start with... Only the I2C I didn't understood clearly.


And around $8 for just the ADC function would be a hard pill to swallow.


7022 is with $4 delivering 10 AD ports with 12 bit.


More like $5/1k, at least in the US:
http://www.digikey.com/scripts/DkSearch/dksus.dll?Criteria?Ref=130267&Site=US&Cat=33358756

But not that much stock which always has me a bit worried. You couldn't even buy 1000 of them for that price right now because they only have 597. Some of the non-stocked versions show this little note: "Obsolete item; call Digi-Key for more information."


the ADuC7022 may not be the cheapest solution, Atmel may have cheaper ones, or Reneas, or...
The Analog MicroConverters do really have excelent AD-units. That's what I know, this is what you didn't guess, me too, but we tested it.


AD is known for analog excellence. Did you do a hard test down to the noise level against a stand-alone ADC? And look at clock beats and stuff?

The other issue is that it's difficult to find local coders that know this uC. That is why we often default to the 8051 family where you can easily find contractors without having to pay lots in travel expenses.

--
Regards, Joerg

http://www.analogconsultants.com
.

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