Fractional-Order Filter Design for Ultra-Low Frequency Applications

被引：0
|
作者：
Dar, M. Rafiq [1 ]
Kant, Nasir A. [1 ]
Khanday, Farooq A. [1 ]
Psychalinos, C. [2 ]
机构：
[1] Univ Kashmir, Dept Elect & Instrumentat Technol, Hazratbal Srinagar 190006, India
[2] Univ Patras, Dept Phys, Elect Lab, GR-26504 Rion, Greece
来源：
2016 IEEE INTERNATIONAL CONFERENCE ON RECENT TRENDS IN ELECTRONICS, INFORMATION & COMMUNICATION TECHNOLOGY (RTEICT) | 2016年
关键词：
fractional-order filters; sub-hertz; biomedical filter design; Impedance scaling; large time constant; PASS FILTER; INTEGRATOR;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The paper presents a novel scheme to implement fractional-order filters for ultra-low frequency applications. The scheme is based on the intrinsic property of the fractional-order filters that the pole frequency can be scaled down to sub-hertz by employing the order if the normal pole frequency of the filter is designed slightly less than one. This is in contrast to the scaling techniques employed in low-frequency integer-order filters where the impedance is scaled to decrease the overall capacitance required for low-frequency design. The functioning of the scheme has been demonstrated by an OTA-based low-pass filter example implemented with 0.35 mu m technology node at +/- 2.1V supply voltage.
引用
收藏
页码：1727 / 1730
页数：4
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