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Current-mode second-order notch filter using CDTA-based allpass sections
Author(s)
Tanjaroen, Wason
Date Issued
December 1, 2008
Type
Conference Paper
Abstract
A circuit technique for realizing a current-mode second-order notch filter using CDTA-based first order allpass sections is presented in this paper. The proposed circuit employs only four CDTAs and two virtually grounded capacitors, and exhibit low-input and high-output impedances, which is suitable for cascading in current-mode operation. The circuit also has low passive and active sensitivities. Moreover, if the active and passive component values are properly chosen, the circuit permits the realization of second-order allpass current response. PSPICE simulation results are used to verify the theoretical analysis. © 2008 SICE.
Citation
Proceedings of the SICE Annual Conference, 1143-1146, 2008