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
    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
    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
    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
    That is, essentially my question, this could cause interference.