Question 11.6: Determining the Transconductance-Amplifier Model Find the tr...

The short-circuit transconductance gain is given by

G_{msc}=\frac{i_{osc}}{v_i}

The output current for a short-circuit load is

i_{osc}=\frac{A_{voc}v_i}{R_o}

Thus, we find that

G_{msc}=\frac{A_{voc}}{R_o}=1.0\mathrm{~S}

The resulting amplifier model is shown in Figure 11.15.