An amplifier can be characterized as follows: A series of these amplifiers are connected in cascade, and feedback is used around each amplifier. Determine the number of stages needed to produce an overall gain of 1,000 with a high-frequency roll off (at - 20 dB/decade) occurring at 100,000 r a d/sec. Assume that the first stage produces the desired high-frequency pole and that the remaining stages are designed so that their high-frequency poles are at least a factor of four greater.
A(s) = 10,000 .V/V
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