Nov 30, 2007 #1 I ilovebow Junior Member level 2 Joined Apr 25, 2007 Messages 22 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,429 hi all, I am confused about the overdirve voltage about second stage of Gilbert Mixer(the four cmos cross-couple stage). I wanna make the overdrive voltage small( Vgs-Vth) and input is Vin, and the signal from the first stage is Vs then, Vgs= Vin -Vs. THe problem is Vin and Vs are both periodic signal, they change all the time. How can i keep Vin - Vs = Vgs stable and small ? Best Wishes Gang
hi all, I am confused about the overdirve voltage about second stage of Gilbert Mixer(the four cmos cross-couple stage). I wanna make the overdrive voltage small( Vgs-Vth) and input is Vin, and the signal from the first stage is Vs then, Vgs= Vin -Vs. THe problem is Vin and Vs are both periodic signal, they change all the time. How can i keep Vin - Vs = Vgs stable and small ? Best Wishes Gang