Consider the BIT op-amp circuit in FigureP13.5. The transistor parameters are: β(npn) = 12...

Consider the BIT op-amp circuit in FigureP13.5. The transistor parameters are: β(npn) = 120, β (npn) = 80, β = 80, VA (all transistors), and baseemitter tum-on voltage = 0.6 V (all transistors). (a) Determine the small signal differential-mode voltage gain. (b) Find the differential-mode input resistance. (c) Determine the unity-gain bandwidth.