
1.62 Figure P1.62 shows a transconductance amplifier whose output is fed back to its input. (a) Find the input resistance Rin of the resulting one-port network. (Hint) (b) Show that when driven by a voltage source, vs, having source resistance Rs = Rin, the voltage gain vo/vs = 0.5 · vo/vi (This is another method for finding the input resistance.)
1.62 Figure P1.62 shows a transconductance amplifier whose output is fed back to its input. (a) Find the input resistance Rin of the resulting one-port network. (Hint) (b) Show that when driven by a voltage source, vs, having source resistance Rs = Rin, the voltage gain vo/vs = 0.5 · vo/vi (This is another method for finding the input resistance.)