Abstract

A model proposed recently for an operational amplifier gyrator circuit is used to develop a compensation technique whereby the useful bandwidth of the gyrator circuit can be increased. The compensation technique is verified first by computer-aided analysis and then by experiment. It is shown that a significant increase in the useful gyrator bandwidth can be achieved by using an inexpensive capacitor. The compensation technique is then applied in the design of a gyrator-C channel-bank filter. The influence of dc-supply voltage and ambienttemperature variations on the performance of the filter is examined.

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