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International Journal of Advancements in Electronics and Electrical Engineering

Tunable OTA Low Pass Filter with the Fractional-Order step Technique



This paper presents the tunable technique of the analog filter at high frequency fp = 1 MHz by used the Fractional-order step, where is an original of integer-order on circuit and is an approximation order step , An approximation order is designed from the Fractance circuits, and also presents the approximation function of the Fractional-order Laplacian design on the OTA low-pass filter circuit. This circuit used single active component. OTA and CFA components are in monolithic chip (IC LT1228).The CFA design with the Fractional-order elements to feedback control the OTA for relative stabilty gain of amplifier. The results shown that tunable filter by Fractional-order step technique provides the flat passband and reduced the peaking problem and improved slope of magnitude response of filter and result comparable with high-order filters.

No fo Author(s) : 3
Page(s) : 109 - 112
Electronic ISSN : 2319 - 7498
Volume 1 : Issue 2
Views : 672   |   Download(s) : 161