11.4 Consider the noninverting op-amp circuit of Example 11.1. Let the open-loop gain A have a low-frequency value of 104 V/V and a uniform –20-dB/decade rolloff at high frequencies, with a 3-dB frequency of 100 Hz. Find the low-frequency gain and the upper 3-dB frequency of a closed-loop amplifier with R1 = 1 kΩ and R2 = 9 kΩ.
9.99 V/V; 100.1 kHz
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