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Plot using waveVsWave function

Pedro Cardoso

Hi,

I've setup an Assembler session with one test and one dcOP analysis.

The schematic is pretty basic, just a single transistor for which vgs, L and W are being swept.

Let's say that I have:

W=1u:1u:10u

W=1u:1u:10u

vgs=0.6:0.1:3

I've set some expressions, such as: OP("M0" "gmoverid"), OP("M0" "vth"), etc

When I right click, on the results tab, the gmoverid result and plot all, it will plot correctly the gm/id curve in function of either W, L or vgs. However if I do the same with the calculator using waveVsWave, it will get the waveform families wrong, that is, it will connect the points to the points of another waveform instead of its own waveform. It seems Assembler doesn't know that that collection of points is a waveform.

How can I get around this? I need to plot any OP expression vs another, like gm/id vs vov, current desinty vs gm/id, etc.

Please check the plots attached (first one right, second wrong).

Thanks in advance.

Best regards,

Pedro

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  • Andrew Beckett
    in reply to Pedro Cardoso

    If this was urgent, you should have contacted customer support.

    I finally had a few minutes to try this out (which took more than a few minutes to set up a suitable test case...), and I see a similar issue. Looks like a bug, so you'll need to contact customer support anyway for that.

    Andrew.

  • Pedro Cardoso
    in reply to Andrew Beckett

    Thanks a lot Andrew.

    Cheers,

    Pedro

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