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Article: Designing RC active filters with standard-component values.(Technology Information)
- Article from:
- EDN
- Article date:
- November 23, 2000
- Author:
CopyrightCOPYRIGHT 2000 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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BY MODIFYING FILTER-DESIGN EQUATIONS TO IMPLEMENT EXACT COMPONENT VALUES, YOU CAN MINIMIZE FILTER-RESPONSE DISTORTION AND STATISTICALLY PREDICT BEHAVIOR.
ACTIVE FILTERS ARE UBIQUITOUS in electronic design today, performing signal-frequency manipulation and conditioning for audio, IF (intermediate frequency), and digital-signal processing. The success of active filters is due primarily to integration capability and the extensive body of theoretical knowledge. Although DSPs can outperform active filters in dynamic range, active filters can achieve good performance with significantly lower power demands.
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