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  3. Annotate Transistor operating points

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Annotate Transistor operating points

itos
itos over 8 years ago

Hi,

I would like to annotate the operating points of my transistors (ADE L-> Results -> Annotate -> DC Operating Points). The annotations are always the same: Id Gm_M1 Gds_M1 Gmoverid_M1 Self_gain_M1 Vgs Vds Cdd_M1 Cgg_M1 C_Csdext.

Now I know how this works: Tools -> CDF -> Edit.

However, I cannot use layer Basic because it is the devices library which is 1.) system wide 2.) I do not want to mess with. And I cannot use User Layer because it is discarded every time I restart Virtuoso.

I have also found View->Annotations->Setup in the Schematic Editor. However, it seems I it always stores the settings for the current cell or so. I do not quite understand the annotation setup. I just know that from time to time I end up entering all the annotations again and again because they are somehow lost. This is annoying.

I also ended up using CDF, exporting the whole user CDF and loading in in .cdsinit via load(). But also this caused problems and seems to be extremely fragile: It stores the whole CDF (80 kB!) although all I need is the information which information to display in the annotations.

Is there an easy, reliable way to configure the annotations globally and statically for all cells? Also, since the device library contains dozens of devices it would be great if this could be configured with a command rather than clicking through the GUI many times.

I think all I need would be to set "cdfId->opPointLabelSet" statically and globally.

Thank you!

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