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A third-order active-filter realization having a complex pole with a low-Q sensitivity with respect to the gain-bandwidth product of operational amplifier

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2 Author(s)
N. K. Prasad ; Regional Engineering College, Rourkela, India ; E. J. P. May

A third-order state-variable filter realization using operational amplifliers is proposed to realize a high-Q high-frequency complex pole. This realization, under the optimal design condition, eliminates the effect of the gain-bandwidth product of the operational amplifier on the Q of the complex pole and ensures the stability. Hence high-Q high-frequency poles can be realized using this method.

Published in:

Proceedings of the IEEE  (Volume:67 ,  Issue: 2 )