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Cancellation Technique of Parasitic Poles for Active-R Highpass Filter
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/10/25
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Issue on JTC-CSCC '90)
Category: Analog Filters
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This letter presents a cancellation technique of parasitic poles of operational amplifier (op amp) in active filter design. To minimize the effect of the parasitic poles, a three-pole model of op amp is utilized. A second order highpass filter is evaluated both theoretically and numerically.