(Solved): 2 Differential Amplifier Circuit Analysis The circuit in Figure 2.1 is called a Differential Am ...

2 Differential Amplifier Circuit Analysis The circuit in Figure 2.1 is called a Differential Amplifier. This circuit has two inputs, one applied at the inverting input and the other at the non-inverting input of the Differential Amplifier. The differential amplifier circuit analysis utilises superposition theorem to obtain input-output relationship. Figure 2.1: Differential Amplifier Circuits: (a) with One Op-Amp, (b) with two Op-Amps 2.1 Differential Amplifier Circuit Analysis (a) Find an expression for the output voltage, ${\mathrm{V}}_0$ in Fig. 2.1. (b) Let ${\mathrm{V}}_1=0$, find an expression for the output voltage, ${\mathrm{V}}_0$ in terms of ${\mathrm{V}}_2$. (c) Let ${\mathrm{V}}_2=0$, an expression for the output voltage, ${\mathrm{V}}_0$ in terms of ${\mathrm{V}}_1$. (d) If the ratio of $\left(R_1/R_2\right)=\left(R_3/R_4\right)$, find an expression for the output voltage, ${\mathrm{V}}_0$. (e) What observation did you make from these input-output relationships under different conditions above?