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Op-amp oscillator circuit - square, triangle, sine waveforms

  1. Sep 22, 2004 #1
    Does anyone know of any good oscillating circuits that are able to produce square, triangle, and sine waveforms (or any combination of these waveforms). The circuit that I'm constructing has to vary in frequency and is limited to using high-speed op-amps and other general components (resistors, caps, etc. - no special IC's).

    Thanks in advance
  2. jcsd
  3. Sep 23, 2004 #2


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    Wein Bridge

    Search a semiconductor manufacturer like national for the triangle wave outputs, they'll have documentation on using op amps to get it like Linear Brief 23.

    I'll let you figure out the square. :)

  4. Sep 26, 2004 #3


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    Gold Member

    This sounds suspicously like a school assignment. Just remember that a current souce feeding a capacitor causes a linear ramp voltage to form across the cap. Figure it out from there.
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