1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

µC with DAC

Discussion in 'Microcontrollers' started by SneaKSz, Jan 25, 2011.

  1. SneaKSz

    SneaKSz Member

    Joined:
    Jul 5, 2010
    Messages:
    267
    Likes:
    4
    Location:
    Belgium
    Hello,

    is there a µC with an in build DAC from Microchip?

    Thanks in advance.
     
  2. MikeMl

    MikeMl Well-Known Member Most Helpful Member

    Joined:
    Mar 17, 2009
    Messages:
    11,041
    Likes:
    541
    Location:
    AZ 86334
    None that I am aware of. It is easy to connect an external one, or to create a PWM-based one.
     
  3. SneaKSz

    SneaKSz Member

    Joined:
    Jul 5, 2010
    Messages:
    267
    Likes:
    4
    Location:
    Belgium
    yea an external one , but maybe there exists one but not from the firm microchip? I cant find one ..
     
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. DirtyLude

    DirtyLude Well-Known Member

    Joined:
    Aug 5, 2003
    Messages:
    1,904
    Likes:
    56
    Location:
    Toronto, Canada

    I thought the dsPIC's had DACs.
     
  6. MadWolfX694

    MadWolfX694 New Member

    Joined:
    Dec 31, 2010
    Messages:
    2
    Likes:
    0
    Location:
    Beaverton, Or
    Not sure what kind of spec you need but the PIC12F/LF1822/PIC16F/LF1823 line have a 5 bit DAC. You will need to buffer the ouput to really be useful. PWM and a low pass filter offer a low cost alternative.
     
  7. SneaKSz

    SneaKSz Member

    Joined:
    Jul 5, 2010
    Messages:
    267
    Likes:
    4
    Location:
    Belgium

    Hello MadWolf , thanks for the reply ! They have indeed a DAC , but its only 5 bit hmm. I need a µC with more pins( eg 20) SPI, I²C ,DAC and a USB-interface.

    I've also seen the PWM with LPF , but its rather slow.

    I'll keep on searching , probably I'll use an external DAC with SPI.
     
  8. DirtyLude

    DirtyLude Well-Known Member

    Joined:
    Aug 5, 2003
    Messages:
    1,904
    Likes:
    56
    Location:
    Toronto, Canada
    Some dsPIC's do have DAC's.

    If you want everything on the list with a single chip, the LPC17xx (everything but the lpc1764) have all the peripherals you listed plus a 10bit DAC.
     
  9. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

    Joined:
    Nov 17, 2003
    Messages:
    39,199
    Likes:
    640
    Location:
    Derbyshire, UK
    What are you wanting it to do? - a common method is a simple R2R ladder.
     

Share This Page