Noise Analysis

Discussion in 'Cadence' started by Sam, Apr 30, 2011.

  1. Sam

    Sam Guest

    Dear all,

    This is the first time I am attempting to perform a noise analysis in CADENCE SPECTRE simulator. I am trying to plot the noise PSD of NMOS device (M1). So I just biased the device by connecting DC voltage sources at the Gate and Drain.

    Now, in the Virtuoso Analog Design Environment, after choosing the 'noise' analysis, I entered the following inputs:


    Output Noise:

    probe Output Probe Instance: /M1



    Input Noise:

    none


    After running the simulation, when I am trying to plot the 'Output Squared Noise' from the 'direct plot' option under 'result' section, the plot I am getting is a flat response with zero magnitude (1Hz-1GHz).

    Could somebody please help me to do the right thing in order to have proper response?

    regards
    Sam
     
    Sam, Apr 30, 2011
    #1
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