Derive an equation for the ratio of the unity-gain frequency of the folded-cascode amplifier of Fig. 6.20 to the unity-gain frequency of the current-mirror opamp of Fig. 6.22 in terms of and assuming...

Derive an equation for the ratio of the unity-gain frequency of the folded-cascode amplifier of Fig. 6.20 to the unity-gain frequency of the current-mirror opamp of Fig. 6.22 in terms of and assuming both amplifiers have the same size input transistors, total power dissipation, and load capacitances. For the folded-cascode opamp, define to be . What is this ratio for equal to 1, 2, and 4?