Apr 25, 2005 #1 A ardalan Newbie level 4 Joined Apr 24, 2005 Messages 7 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,329 cmfb hi thank you for to reply my question. what is cmfb in analog circuit? electim2004@yahoo.com
Apr 25, 2005 #2 A APPLESTREE Newbie level 6 Joined Mar 7, 2005 Messages 11 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,379 cmfb CMFB is a circuitry to determine the common-mode voltage, expecially for high-impedance node and control it to work properly. You can find some circuits in "anlog integrated circuit design" by David Johns.
cmfb CMFB is a circuitry to determine the common-mode voltage, expecially for high-impedance node and control it to work properly. You can find some circuits in "anlog integrated circuit design" by David Johns.
Apr 28, 2005 #3 L longjian Newbie level 3 Joined Feb 15, 2005 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,298 cmfb it bias the circuit in an correct working region
Apr 30, 2005 #4 Y yibinhsieh Full Member level 4 Joined Apr 25, 2005 Messages 194 Helped 19 Reputation 38 Reaction score 5 Trophy points 1,298 Activity points 2,845 Re: cmfb CMFB circuit is needed in fully differential circuit like fully differential OP. In many fully differential circuit, its output is high impedance and no DC bias is here. So you need CMFB circuit to stablize it. Yibin.
Re: cmfb CMFB circuit is needed in fully differential circuit like fully differential OP. In many fully differential circuit, its output is high impedance and no DC bias is here. So you need CMFB circuit to stablize it. Yibin.