Re: ADC/DAC

Spehro Pefhany wrote:

On Thu, 02 Feb 2006 01:07:18 +0000, the renowned Dirk Bruere at Neopax
<dirk.bruere@xxxxxxxxx> wrote:


Spehro Pefhany wrote:


On Thu, 02 Feb 2006 00:18:22 +0000, the renowned Dirk Bruere at Neopax
<dirk.bruere@xxxxxxxxx> wrote:



Dan Hollands wrote:



"Dirk Bruere at Neopax" <dirk.bruere@xxxxxxxxx> wrote in message news:44cqhsF1it9dU1@xxxxxxxxxxxxxxxxx



Any recommendations for a cheap combo chip, 12 bits min, for interfacing to a uP? Ideally I need single 5V rail supply and conversion rate of around 100K/s for the ADC

--
Dirk

The Consensus:-
The political party for the new millenium
http://www.theconsensus.org



Why not us a micro with built in ADC such as one of the Analog Devices microcontrollers

Largely because I need a CANBUS i/f, and that means PIC unless someone can point me to some extremely cheap ucontrollers with CANBUS and 12 ADC/DAC


If not, you could drop a MCP2515 SPI<->CAN onto whichever micro you
want.

One reason for using the PIC is the wealth of free code available, probably unmatched by any other ucontroller.


Certainly in quality. ;-)

But even if the drivers are a major factor, you may *still* find it
cheaper to use two micros and relegate the 805x to just buffering the
information to and from the ADC/DAC.

Why, just for once, can't I find the perfect part to do the job? Everything I've done for the last 25yrs has been a balancing act...

--
Dirk

The Consensus:-
The political party for the new millenium
http://www.theconsensus.org
.

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