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PMOS Resistance 2R?

Robin Mitchell

Thread Starter

Robin Mitchell

Joined Oct 25, 2009
819
Hi everyone,

Long time no see!

Anyway, I am currently working on VLSI but I am confused about one aspect on modeling transistors. Why is it that PMOS transistors have a resistance of 2R where NMOS have a resistance of just R? Is it to do with the potentials involved (the body of the PMOS connected to power) or just some property of the charges involved?

All the best,
Robin
 
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