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How to plot Vgs-Vt on the x-axis in Cadence?

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ccw27

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plotting in cadence

Hi,

I am sweeping the input Vgs and would like to plot Vgs-Vt on the x-axis instead of only Vgs. How do I do this in Cadence?

Thanks
 

plotting in cadence

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    r.f.k

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Re: plotting in cadence

Using calculator. U can calculate Vg-Vs, then click MP calculator button and select transistor on schematic window. After that choose vth0 model parameter and subtract that from Vg-Vs. You will get expression Vs-Vg-Vth. Just plot it.
 

Re: plotting in cadence

Hi,

Not sure how your method work, but i used the lshift function to shift the x-axis (Vgs) by -Vth using OP function. Now, if I wanted to times by a constant then I am not sure how to do it. Any ideas? Maybe interchange y and x axis but not sure how to it either.

Cheers
 

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