sheldon
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Turbo,
In case you don't have access to stb analysis, please review "The Designer's Guide to SPICE and Spectre", section 3.4.1. Several approaches to stability analysis discussed including: 1) Using VCVS to set the feedback and directly measuring the loop gain. 2) Middlebrook's method 3) Two-port method All these methodologies will allow you to perform stability analysis, however, they will also require some post-processing. If you do use inductor/capacitor based testbench, you should also review the DG to SPICE and Spectre. There are some limitations with this approach and they are discussed in the book.
Best Regards,
Sheldon
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