Design a 1.5m amplifier to drive a 5pf capacitor, any ideas?

Discussion in 'The Projects Forum' started by lqccz, Nov 29, 2011.

  1. lqccz

    Thread Starter New Member

    Nov 29, 2011
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    I am working on a project aimed at designing amplifier that can reach a frequency of 200Mhz, and it will drive a 5pf capacitor. The output voltage range is between 2-28v.
    And I am going to use Class B amlifier, any guys have idea Mosfet to recommend?
     
  2. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
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    What is the output device?
    What is the input source, and it's impedance?
    You may not need a full perfect sinewave.
     
  3. joeyd999

    AAC Fanatic!

    Jun 6, 2011
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    Considering the 2nd harmonic is 400Mhz, it might be difficult to generate anything *except* (close to) perfect sinewaves.

    I think his main problem will not be generating the frequency, but the amplitude. There are a lot of video amps that can solve this problem, but at a much lower voltage.

    The dV/dt of 28V @ 200Mhz is quite large at the zero crossing...
     
  4. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
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    That is, essentially my question, this could cause interference.
     
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