Synthesis of Low-Sensitivity Analog Filters
2010 (English)In: ANALOG CIRCUIT DESIGN, 129-145 p.Article in journal (Refereed) Published
Doubly resistively terminated LC filters are optimal from an element sensitivity point of view and are therefore used as reference filter for high-performance active filters. The later inherits the sensitivity properties of the LC filter. Hence it is important to design the reference filter to have minimal element sensitivity. In this paper, we first review the mechanism for the low sensitivity and give an upper bound on the deviation in the passband attenuation. Next we compare classical lowpass approximations with respect to their influence on the sensitivity and propose the use of diminishing ripple in the passband to further reduce the sensitivity. Finally, we propose a design strategy for doubly resistively terminated LC filters with low sensitivity.
Place, publisher, year, edition, pages
SPRINGER , 2010. 129-145 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-58509DOI: 10.1007/978-90-481-3083-2_7ISI: 000273028100007OAI: oai:DiVA.org:liu-58509DiVA: diva2:342947