Electronics-I Lecture 42

Electronics-I Lecture 42 - CommonSourceAmplifier Lecture 42...

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Lecture 42 Electronics I 1 Common Source Amplifier
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Lecture 42 Electronics I 2 Common Source Amplifier Input Resistance  R in  = R G Input Voltage v i  = v sig R G /(R G  + R sig ) R G  is usually selected  very large (M v i    v sig v i  = v gs
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Lecture 42 Electronics I 3 Common Source Amplifier Output Voltage v O  = -g m v gs  (R L || R ||r o ) Voltage Gain     A V = v O /v gs    = -g (R L ||R D ||r o ) Open Circuit Voltage  Gain A vo A VO = -g (R || r o )
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Lecture 42 Electronics I 4 Common Source Amplifier Output Resistance R out  = R D  || r o Overall Voltage Gain ) || || ( L D o m Sig G G V V Sig in in V R R r g R R R G A R R R G + - = + =
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Lecture 42 Electronics I 5 Common Source Amplifier with  Source Resistance
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Lecture 42 Electronics I 6 Common Source Amplifier with  Source Resistance Input Resistance  R in  = R i  = R G Input Voltage v i  = v
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This note was uploaded on 12/12/2010 for the course EE 1 taught by Professor Shahidanwar during the Spring '10 term at NUCES.

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Electronics-I Lecture 42 - CommonSourceAmplifier Lecture 42...

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