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Personal favorite DAC to use with Propeller. — Parallax Forums

Personal favorite DAC to use with Propeller.

CumQuaTCumQuaT Posts: 156
edited 2011-02-26 09:39 in Propeller 1
Hi all. You may remember a while back I asked people's opinions on the best ADC to use with the propeller and I got an overwhelming amount of suggestions for the MCP3208, which I have since used and found to be an awesome little device.

Well now I call on the forum's help again! I'm looking for user's favorite DAC to use with the propeller chip that will generate outputs up to at least 5V.

This will be my first time using one, too, so any links to circuit examples, OBEX objects for your fav model, etc, would be much appreciated!

Thank you all very much in advance :)

Comments

  • LeonLeon Posts: 7,620
    edited 2011-02-21 08:59
    Speed and number of bits?
  • CumQuaTCumQuaT Posts: 156
    edited 2011-02-21 14:33
    Preferably 12bit and as fast as is realistically needed for the prop. I guess something that compliments the MCP3208 well :)
  • Project5kProject5k Posts: 58
    edited 2011-02-22 06:14
    I'm trying to use a tlc2543cn, but not having much luck yet... i've seen code for the 3208, and i've seen others say that they found it easy to use...

    Considering i'm a total noob to propellers but not electronics, would you suggest the 3208 for reading voltage output from a lm34? 0.00 - 1.5Vdc in my case...

    also whats your prefered pinout connections between the prop and the 3208?

    If this is really a good chip, and theres already working code for it, i'll order a couple of them and skip the 2543 i have for now... wanted to order a few more lm34's for a couple other projects anyway, so if i'm gonna make a digikey order might as well make the shipping worth it, right?
  • CumQuaTCumQuaT Posts: 156
    edited 2011-02-26 03:36
    Hi Project5k,

    Yes, the 3208 is definitely the one to use. Hooking it up is fairly straightforward. Here are the pinouts.

    It should easily work for what you're doing, though it is an 8 channel IC, which might make it overkill if you're only using it to measure one thing.

    I'd throw in a dozen or so into your next order as they are quite easily the simplest ADC to use with the propeller from one n00b to another :)
  • Project5kProject5k Posts: 58
    edited 2011-02-26 09:39
    cool, thanks for the info.. i'm actually gonna be measuring 6-8 things so, thats just about right... i've ordered some other temp sensors to try and start working with, they are a 1 wire buss setup, so i can have like 64 of them on one pin... but the adc's will come in handy for other things as well...
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