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perplexabot
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Hi all, I have gave this question a lot of thought but can't seem to get anywhere. Any help will be much appreciated.
For a digital logic inverter for which k'n = 120 uA/V^2, k'p = 60 uA/V^2, Vtn = |Vtp| = .7V, VDD = 3V, Ln = Lp = .8 um, Wn = 1.2 um and Wp = 2.4 um, find:
the maximum current that the inverter can sink or source while the output remains within .1V of ground or VDD respectively.
(attached as an image)
No idea what to do. I can't even start to think about this one. I know that when Vout = Vdd/2, max current is achieved since (if Vdd is large enough) both mosfets are in saturation. Is that right? But I don't think this has anything to do with this question, since we are restriced to .1V from ground or VDD. I do not understand what is meant by the solution manual, please HELP.
I have also attached the answer in the solution manual, it makes no sense to me. Please help me out. This question is bothering me. Thank you
Homework Statement
For a digital logic inverter for which k'n = 120 uA/V^2, k'p = 60 uA/V^2, Vtn = |Vtp| = .7V, VDD = 3V, Ln = Lp = .8 um, Wn = 1.2 um and Wp = 2.4 um, find:
the maximum current that the inverter can sink or source while the output remains within .1V of ground or VDD respectively.
Homework Equations
(attached as an image)
The Attempt at a Solution
No idea what to do. I can't even start to think about this one. I know that when Vout = Vdd/2, max current is achieved since (if Vdd is large enough) both mosfets are in saturation. Is that right? But I don't think this has anything to do with this question, since we are restriced to .1V from ground or VDD. I do not understand what is meant by the solution manual, please HELP.
I have also attached the answer in the solution manual, it makes no sense to me. Please help me out. This question is bothering me. Thank you
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