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Novel current controlled differential-input buffered output active element and its application in all-pass filter
Author(s)
Date Issued
October 9, 2015
Type
Conference Paper
Abstract
This paper presents a novel high-performance first-order voltage-mode all-pass filter based on single active element and single grounded capacitor. The filter provides high-input and extremely low output impedances with possibility of electronic tuning of its natural frequency. The active element used in the filter design is novel and named current controlled differential-input buffered output (CC-DIBO) where the intrinsic resistances of its input current terminals can be controlled independently by external balancing bias currents. The proposed CC-DIBO element has current and voltage terminals appearing on both of its input and output; hence it is suitable for voltage-, current- and mixed-mode applications. The SPICE simulation results of the proposed filter properties using the 0.18μm CMOS technology from TSMC are also presented.
Citation
2015 38th International Conference on Telecommunications and Signal Processing Tsp 2015, 335-338, 2015