A general active-K biquadratic is derived, which is shown to realize all important. types of second order filters. The circuits exhibit low ω0 and Q-scnsitivities, being comparable to the passive RLC case. The scheme is ideally suited for monolithic IC implementation. Experimental results are included. Here OA implies the amplifiers which are used in the simulation of L and C.
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Ahmed et al. (1983) studied this question.
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