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Research Note

Errors due to CMRR in a Class of Active Filters

(Grad. Member) &
Pages 340-342 | Received 21 Aug 1975, Published online: 11 Jul 2015
 

Abstract

The errors in frequency response which arise due to finite ‘common mode rejection ratio’ of the operational amplifiers used in the active-RC filters are evaluated. Two examples of a class are given which imply that grounded-capacitor structures are superior at high frequencies.

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