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ADC/DAC

Discussion in 'Electronic Design' started by Dirk Bruere at Neopax, Feb 1, 2006.

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  1. 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
     
  2. Dan Hollands

    Dan Hollands Guest


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


    --
    Dan Hollands
    1120 S Creek Dr
    Webster NY 14580
    585-872-2606

    www.QuickScoreRace.com
     
  3. 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


    --
    Dirk

    The Consensus:-
    The political party for the new millenium
    http://www.theconsensus.org
     
  4. If not, you could drop a MCP2515 SPI<->CAN onto whichever micro you
    want.


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

    --
    Dirk

    The Consensus:-
    The political party for the new millenium
    http://www.theconsensus.org
     
  6. 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.


    Best regards,
    Spehro Pefhany
     
  7. 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
     
  8. Eventually it catches up with you. You and your little dog too.

    How about something like a dspic30F6011A, just add a DAC.


    Best regards,
    Spehro Pefhany
     
  9. Possible, but it seems a bit overkill, esp the pin count.

    --
    Dirk

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

  10. 30F4013 then, whatever. ;-)


    Best regards,
    Spehro Pefhany
     
  11. Austria Microsystems has a series SPI based 12bit ADC.

    JG
     
  12. Bingo!

    --
    Dirk

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