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Unformatted text preview: e increase the widths of the transistors, the corresponding
propagation delays get decreased first but if you continue to increase the widths, you will find
that the propagation delays get increased eventually.
) a t r a P Explain why does it happen.
Perform SPICE simulations for a simple CMOS inverter with the libraries that you have used in
to confirm your answer. Use L = 300 nm, VDD = 2.5 V.
P 5 2 c m s t N 5 2 c m s t ) b t r a P A gate has
propagation delays. Also a gate with more than one input
can have different rising and falling propagation delays...
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This note was uploaded on 02/19/2014 for the course ECE 559 taught by Professor Staff during the Fall '08 term at Purdue University-West Lafayette.
- Fall '08