Anyone here familiar with circuit simulators? New to them, can't figure out what's wrong with my des...

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Anyone here familiar with circuit simulators? New to them, can't figure out what's wrong with my design.

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I'm pretty new to circuit sims, and I'm using partsim (which has a SPICE simulator and is free, so that rocks). I'm trying to simulate a common gate amplifier circuit, and when I conduct transient analysis to find the ac voltage gain, I can't figure out why the gain is so low. Isn't a CG amp the analogue of a CB BJT amplifier (where the voltage gain is high)?

I used the default PMOS that the software provided, and I don't know how to adjust the settings (since there are some factors like transconductance missing from the specs).

Could anyone help me out here? Here's the link to my project: http://www.partsim.com/simulator/#41313

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pk75

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Posted: 8 years ago
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