Jul 13, 2017 #1 S simplsoft Full Member level 2 Joined Nov 24, 2014 Messages 127 Helped 0 Reputation 0 Reaction score 0 Trophy points 16 Activity points 1,045 Can anyone help me in expalining the diference between MOSFET-C, OTA-C and GM-C filters. According to my knowledge OTA-C filter and GM-C filter are same but what is MOSFET-C filter. OTA also includes MOSFETS so what is the difference?
Can anyone help me in expalining the diference between MOSFET-C, OTA-C and GM-C filters. According to my knowledge OTA-C filter and GM-C filter are same but what is MOSFET-C filter. OTA also includes MOSFETS so what is the difference?
Jul 14, 2017 #2 erikl Super Moderator Staff member Joined Sep 9, 2008 Messages 8,108 Helped 2,695 Reputation 5,370 Reaction score 2,305 Trophy points 1,393 Location Germany Activity points 44,123 simplsoft said: ... OTA also includes MOSFETS so what is the difference? Click to expand... Probably just the designation. A gm-C filter needs an amplifier, but not necessarily an OTA: for more output drive, e.g., you'd add another output stage - and then it's called an OpAmp, perhaps a MOSFET OpAmp.
simplsoft said: ... OTA also includes MOSFETS so what is the difference? Click to expand... Probably just the designation. A gm-C filter needs an amplifier, but not necessarily an OTA: for more output drive, e.g., you'd add another output stage - and then it's called an OpAmp, perhaps a MOSFET OpAmp.
Jul 15, 2017 #3 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,485 Helped 14,756 Reputation 29,794 Reaction score 14,121 Trophy points 1,393 Location Bochum, Germany Activity points 298,364 A "MOSFET-C" filter is a passive or active RC filter with a MOSFET used as resistor. The topology is clearly distinguished from gm-C.
A "MOSFET-C" filter is a passive or active RC filter with a MOSFET used as resistor. The topology is clearly distinguished from gm-C.