(Solved): (ii) An op-amp is used to make two different circuits as shown in Figure 3(a,b) below. The op-amp i ...

(ii) An op-amp is used to make two different circuits as shown in Figure 3(a,b) below. The op-amp itself has an open loop gain \\( A_{o} \\) of \\( 120 \\mathrm{~dB} \\) and a single open-loop pole at \\( 50 \\mathrm{~Hz} \\). In both cases, \\( R_{1} \\) is \\( 1 \\mathrm{k} \\Omega, R_{\\mathrm{f}} \\) is \\( 50 \\mathrm{~K} \\Omega \\). Figure 3: (a) (b) Use a Bode plot to show how the use of feedback will affect the gain and bandwidth of the amplifier. (iii) Calculate the closed-loop voltage gain of the amplifier in Figure 3 (a). (iv) A band pass filter is to be constructed using resistor and capacitor components that will only allow a range of frequencies to pass above \\( 1 \\mathrm{kHz}(1,000 \\mathrm{~Hz}) \\) and below \\( 30 \\mathrm{kHz}(30,000 \\mathrm{~Hz}) \\). Assuming that both the resistors have values of \\( 10 \\mathrm{k} \\Omega \\), calculate the values of the capacitors required (include a drawing of your circuit).