A certain operational amplifier has an open-loop response curve as shown in Figure 3-34....

A certain operational amplifier has an open-loop response curve as shown in Figure 3-34. A particular application requires a 30 dB closed-loop midrange gain. In order to achieve a 30 dB gain, compensation must be added because the 30 dB line intersects the uncompensated open-loop gain on the —40 dB/decade slope and, therefore, stability is not assured.

(a) Find the critical frequency of the compensating network such that the —20 dB/decade slope is lowered to a point where it intersects the 30 dB gain line.

(b) Sketch the ideal response curve for the compensating network.

(c) Sketch the total ideal compensated open-loop response.