An even better Bessel filter

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jackinnj

jackinnj

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Joined 2002
tech-diy.com
thankfully I had not yet thrown out the Feb 16th issue of EDN -- Troy Murphy of Analog Devices describes an 8th order Bessel filter design with THD+N in the vicinity of 0.0006% -- this particular design is for a 30kHz LPF. The design uses low value resistors and low noise opamps to achieve this TDH+N.


put Troy Murphy into the EDN search engine to see the article. www.edn.com
 

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