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http://dx.doi.org/10.5762/KAIS.2010.11.10.3905

Design of A Voltage-controlled Frequency Tunable Integrator and 3rd-order Chebyshev CMOS Current-mode Filter  

Bang, Jun-Ho (Dept. of IT Applied System Engineering, Chonbuk National University)
Lee, Woo-Choun (Dept. of IT Applied System Engineering, Chonbuk National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.11, no.10, 2010 , pp. 3905-3910 More about this Journal
Abstract
In this paper, a 3rd-order Chebyshev current-mode filter in 1.8V-$0.18{\mu}m$ CMOS parameter is designed. The core circuit of the current-mode filter is composed with the proposed voltage-controlled frequency tunable current-mode integrator. Using the proposed current-mode integrator, the cutoff frequency of the filter can be controlled and also total power consumption can be reduced. HSPICE simulation results show the cutoff frequency of the filter is controlled between 1.2MHz and 10.1MHz, and the power consumption is 2.85mW at Vdd=1.8V.
Keywords
Current-mode; Integrator; Filter; Voltage-controlled; Frequency tunable;
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