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cmos amplifier (Read 2517 times)

aman gupta Community Member Offline Posts: 34 India	cmos amplifier Apr 27^th, 2013, 8:09am plot transfer characterstics ........... PMOS transistors are identical my actual question is can Vi put Q2 in triode region ?? if yes then how ?
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raja.cedt Senior Fellow Offline Posts: 1516 Germany	Re: cmos amplifier Reply #1 - Apr 27^th, 2013, 9:58am hello, Very low voltage at the gate of Q1 leads to very high voltage at Q2 hence it will be in triode region. Enjoy!!!
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aman gupta Community Member Offline Posts: 34 India	Re: cmos amplifier Reply #2 - Apr 28^th, 2013, 5:55am raja.cedt wrote on Apr 27^th, 2013, 9:58am: hello, Very low voltage at the gate of Q1 leads to very high voltage at Q2 hence it will be in triode region. Enjoy!!! because Q1 is common source which is inverting, hence very low at Vin cause a large voltage at Vd2 ??? am i right ??
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raja.cedt Senior Fellow Offline Posts: 1516 Germany	Re: cmos amplifier Reply #3 - Apr 30^th, 2013, 12:37pm yes, otherwise if you increase Vin Q1 draws more current and out voltage will be lower and other way also when Vin decrease. Again please refer razavi book. Thanks, Raj.
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