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2011
BIO-MEDICAL-
ENGINEERING GUIDE.INC
Author:MOHAMMAD-SIKANDAR-KHAN-LODHI
[BIO-MEDICAL-ELECTRONICS,SEC# 1 AND 2 , CH-8 (PART-1-
OF-9 ). ]
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[ B I O - M E D I C A L - E N G I N E E R I N G G U I D E B Y S
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[CH-8] (START-FROM HERE)
FET-AMPLIFICATIONS: [ p.g# 1-of- 113 ] [ELECTRIC-1 & 2][
]
TRANSCONDUCTANCE[]:The Transconductance() is define as [] in
dc-
quantities,(i-e)
[
];
Also, the transconductance is also represented in ac
quantities
as followes (i-e)
[ ];
..
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I K A N D A R - L O D H I ] Page 7-OF-8
[PG# 5-OF-113 ] [ CH-8 ] [ELECTRIC-1 & 2 ]
Infinite-OHMs.
Also, FOR []:There is a another resistance [] are present which
is in justparallel, with current-source,[ ],its the resistance in
b/wthe drain & source, and this resistance [] is in parallel
with currentsource [ ], its shown an high resistance so, we assume
asa [open-circuit ], [
] is the internal drain-to-source-resistance.
FOR []: [CURRENT-SOURCE ()]:Now, there is a channel will be
induced in the FETs [E-MOSFET] which
act as a current source b/w drain-to-source region, its
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