This problem investigates the CG confi guration as a voltage amplifi er. Referring to the ac equivalent of Fig. P6.30, and assuming gm 1 gmb 5 0.35 mA/V, ro 5 40 kV, Cgs 1 Csb 5 750 fF, and Cgd 1 Cdb...

This problem investigates the CG confi guration as a voltage amplifi er. Referring to the ac equivalent of Fig. P6.30, and assuming gm 1 gmb 5 0.35 mA/V, ro 5 40 kV, Cgs 1 Csb 5 750 fF, and Cgd 1 Cdb 5 150 fF, sketch and label the magnitude plots of the unloaded voltage gain VoyVi and the terminal impedances Zi and Zo. Hint: write Zi 5 Zi1//Zi2, where Zi1 is the impedance of Cgs 1 Csb, and Zi2 is the impedance of Cgd 1 Cdb refl ected to the input. Hence, use the impedance plotting techniques described in Appendix 6A.