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https://designers-guide.org/forum/YaBB.pl Design >> Analog Design >> cmos amplifier https://designers-guide.org/forum/YaBB.pl?num=1367075362 Message started by aman gupta on Apr 27th, 2013, 8:09am |
Title: cmos amplifier Post by aman gupta on Apr 27th, 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 ? |
Title: Re: cmos amplifier Post by raja.cedt on Apr 27th, 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!!! |
Title: Re: cmos amplifier Post by aman gupta on Apr 28th, 2013, 5:55am raja.cedt wrote on Apr 27th, 2013, 9:58am:
because Q1 is common source which is inverting, hence very low at Vin cause a large voltage at Vd2 ??? am i right ?? |
Title: Re: cmos amplifier Post by raja.cedt on Apr 30th, 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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