Jul 14, 2006 #1 B Bode82 Newbie level 6 Joined Jul 9, 2006 Messages 14 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,371 Sorry,I want know which is the output resistor of an opamp with mirror wide swing cascode. The opamp is in this figure
Sorry,I want know which is the output resistor of an opamp with mirror wide swing cascode. The opamp is in this figure
Jul 14, 2006 #2 E elbadry Full Member level 6 Joined May 6, 2005 Messages 347 Helped 72 Reputation 144 Reaction score 10 Trophy points 1,298 Location Egypt Activity points 3,884 It's simply (gm ro^2)n //(gm ro^2)p of the output branch transistors
Jul 14, 2006 #3 B Bode82 Newbie level 6 Joined Jul 9, 2006 Messages 14 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,371 So,Rout=(gm10*rds10 *rds8)//(gm12*rds12*rds14)! Iwrite well? And the power total can be Ptot=(K+3)*Itot*Vdd,where Itot is Id1 and Vdd the alimentation!
So,Rout=(gm10*rds10 *rds8)//(gm12*rds12*rds14)! Iwrite well? And the power total can be Ptot=(K+3)*Itot*Vdd,where Itot is Id1 and Vdd the alimentation!
Jul 17, 2006 #4 J janet Junior Member level 3 Joined Sep 6, 2005 Messages 26 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,435 yes I agree with B said