please help me about hspice plot noise

Discussion in 'Cadence' started by egolzari, Jun 27, 2008.

  1. egolzari

    egolzari Guest

    i want to use hspice for plot output noise i write : .noise v(vout)
    vin dec 10 100meg 3g
    though I'm somewhat in doubt as to how to interpret the results.
    Basically the
    onoise_spectrum had about the shape was about 8.613e-17 v/rt hz
    whereas the data sheet listed something
    like 9.2809n v/rt hz noise (at the input). What about this?
     
    egolzari, Jun 27, 2008
    #1
  2. egolzari

    oliver Guest

    It seems the plotted output noise was in V^2/Hz and not in V/sqrt(Hz)
    since [ 9.2809nV/sqrt(Hz) ] ^2 = 8.61351e-17 V^2/Hz

    Oliver
     
    oliver, Jul 2, 2008
    #2
  3. egolzari

    oliver Guest

    It seems the plotted output noise was in V^2/Hz and not in V/sqrt(Hz)
    since [ 9.2809nV/sqrt(Hz) ] ^2 = 8.61351e-17 V^2/Hz

    Oliver
     
    oliver, Jul 2, 2008
    #3
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads

  1. how to plot cgs of mos transistor in Hspice with level 49

  2. Simulate input referred noise using Cadence noise analysis?

  3. VCO(ring oscillator) phase noise/flicker noise analysis question!

  4. Punching Output Noise in phase noise simulations

  5. dimensioning help PLEASE PLEASE

  6. PLEASE HELP AGAIN: need to export informations about saved UCS

  7. DEAR CADDISTS....HELP PLEASE....PLEASE.....!

Loading...