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    Problem on Op-Amp Small-Signal Circuit

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    Consider a non-inverting BiCMOS (CA3140) op-amp shown in image 3b.

    If the input signal is: vi(t)=3*sinwt V

    Calculate the full-power bandwidth (FPBW) and small-signal bandwidth (f3db) (note :ft=6 Mhz, A0=75k)

    Sketch the output wave forms for the two inputs shown in image 3b2.

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    Solution Summary

    The problems on op-amp small-signal circuits are examined. The input signals are determined.