astable multivibrator with555 compared bjt

Discussion in 'The Projects Forum' started by placide, May 29, 2012.

  1. placide

    Thread Starter New Member

    Oct 1, 2011
    22
    0
    can you please help me and tell the advantages of for astable multivibrator with 555 compared to astble multivibrator with BJT.
     
  2. mcasale

    Member

    Jul 18, 2011
    210
    12
    Well, for one thing, a 555 chip is a lot easier to build up. It's probably a lot more stable than a discrete design.

    It all depends on what you are going to do with it. For sensitive measurement instruments, I would never rely on either one as a time base - like taking ADC readings, for example.

    There's a lot of stuff on the web about discrete designs. Try looking at
    http://www.4qdtec.com/mvibs.html
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
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