yefj, keep in mind all the sims forum does depend on models for the parts,
and their completeness. So sim results are not the end all arbiter of what a
circuit will do. Some models bare bones, many for a long time purposely
incomplete as they could potentially reveal a vendors proprietary processes
and design methods. But with concentrated fab houses, with essentially open
design tools, its gotten better, but not the last word. The last word is bench
testing. Years ago one would take many parts from different process runs and
test. That largely has come and gone.
Use them as a guideline, and recognize even bench work introduces parasitics,
compromises. And use generous margining for spec limits is not bad advice.
Regards, Dana.