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Single Active Element Based Voltage-Mode Multifunction Filter

DOI: 10.1155/2014/514019

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Abstract:

The paper presents a new voltage-mode multifunction filter. The proposed filter employs single modified fully differential second generation current conveyor (FDCCII), two grounded capacitors, and three resistors. The proposed circuit enjoys the employment of two grounded capacitors (attractive for absorbing shunt parasitic capacitance and ideal for IC implementation). The proposed circuit provides all five generic filter responses (low pass (LP), high pass (HP), band pass (BP), notch (NH), and all pass (AP) filter responses) simultaneously with single input. The novel proposed filter has low active and passive sensitivities. A number of time domain and frequency domain simulation results depicted through PSPICE using 0.18?μm TSMC process parameters are included to validate the theory. The proposed circuit is expected to enhance the existing knowledge on the subject. 1. Introduction Analog filters are the basic building blocks and widely used for continuous-time signal processing. Applications of analog filters employing current-mode active elements extend over a large number of areas [1–5]. In the literature, several voltage-mode (VM) universal biquadratic filters with single input and multioutputs (SIMO) have been reported [6–10]. A SIMO circuit configuration reported in [6] employs five current feedback amplifiers (CFAs), two grounded capacitors, and six resistors. It realizes all the standard filter functions, namely, low pass (LP), band pass (BP), high pass (HP), notch (NH), and all pass (AP), simultaneously, and also enjoys the features of using only grounded capacitors and orthogonal control between the resonance angular frequency and quality factor. In [7], two voltage-mode universal filter circuits are presented. Each circuit employs two FDCCII, two resistors, and two capacitors. The filter circuits reported in [8, 9] use single FDCCII, three resistors, and two grounded capacitors and realize all generic filter responses in VM. Two VM universal filters are reported in [10]. The first universal filter employs three DVCCs together with two grounded capacitors and three grounded resistors and provides five outputs with single input but it requires matching condition to realize all the generic filter responses. The second reported VM universal filter with three inputs and one output employs three DVCCs, two grounded capacitors, and three grounded resistors. Over the last decades, numerous voltage-mode biquadratic filters using current conveyors are also presented [11–18]. However, all of these reported filters cannot realize five filtering

References

[1]  B. Wilson, “Recent developments in current conveyors and current-mode circuits,” IEE Proceedings Circuits, Devices and Systems, vol. 137, no. 2, pp. 63–77, 1990.
[2]  A. Fabre, O. Saaid, F. Wiest, and C. Boucheron, “Low power current mode second-order bandpass IF filter,” IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, vol. 44, no. 6, pp. 436–446, 1997.
[3]  M. A. Ibrahim, S. Minaei, and H. Kuntman, “A 22.5 MHz current-mode KHN-biquad using differential voltage current conveyor and grounded passive elements,” International Journal of Electronics and Communications, vol. 59, no. 5, pp. 311–318, 2005.
[4]  D. Biolek, R. Senani, V. Biolkova, and Z. Kolka, “Active elements for analog signal processing: classification, review, and new proposals,” Radioengineering, vol. 17, no. 4, pp. 15–32, 2008.
[5]  S. Maheshwari, “Analogue signal processing applications using a new circuit topology,” IET Circuits, Devices and Systems, vol. 3, no. 3, pp. 106–115, 2009.
[6]  M. T. Abuelma'atti and H. A. Al-Zaher, “New universal filter with one input and five outputs using current-feedback amplifiers,” Analog Integrated Circuits and Signal Processing, vol. 16, no. 3, pp. 239–244, 1998.
[7]  H. P. Chen, “Voltage-mode FDCCII-based universal filters,” AEU: International Journal of Electronics and Communications, vol. 62, no. 4, pp. 320–323, 2008.
[8]  H. P. Chen, “Single FDCCII-based universal voltage-mode filter,” International Journal of Electronics and Communications (AEU), vol. 63, no. 9, pp. 713–719, 2009.
[9]  C. N. Lee and C. M. Chang, “Single FDCCII-based mixed-mode biquad filter with eight outputs,” AEU—International Journal of Electronics and Communications, vol. 63, no. 9, pp. 736–742, 2009.
[10]  S. Minaei and E. Yuce, “All-grounded passive elements voltage-mode DVCC-based universal filters,” Circuits, Systems, and Signal Processing, vol. 29, no. 2, pp. 295–309, 2010.
[11]  C. M. Chang, B. M. Al-Hashimi, C. L. Wang, and C. W. Hung, “Single fully differential current conveyor biquad filters,” IEE Proceedings: Circuits, Devices and Systems, vol. 150, no. 5, pp. 394–398, 2003.
[12]  M. A. Ibrahim, H. Kuntman, and O. Cicekoglu, “Single DDCC biquads with high input impedance and minimum number of passive elements,” Analog Integrated Circuits and Signal Processing, vol. 43, no. 1, pp. 71–79, 2005.
[13]  C. M. Chang and H. P. Chen, “Single FDCCII-based tunable universal voltage-mode filter,” Circuits, Systems, and Signal Processing, vol. 24, no. 2, pp. 221–227, 2005.
[14]  H. P. Chen and Y. Z. Liao, “High-input and low-output impedance voltage-mode universal biquadratic filter using FDCCIIs,” in Proceedings of the 9th International Conference on Solid-State and Integrated-Circuit Technology (ICSICT '08), pp. 1794–1798, Beijing, China, October 2008.
[15]  F. Ka?ar and A. Ye?il, “Voltage mode universal filters employing single FDCCII,” Analog Integrated Circuits and Signal Processing, vol. 63, no. 1, pp. 137–142, 2010.
[16]  S. Maheshwari, J. Mohan, and D. S. Chauhan, “Novel Cascadable All-Pass/Notch Filters Using a Single FDCCII and Grounded Capacitors,” Circuits, Systems, and Signal Processing, vol. 30, no. 3, pp. 643–654, 2011.
[17]  F. Ka?ar and A. Ye?il, “FDCCII-based electronically tunable voltage-mode biquad filter,” International Journal of Circuit Theory and Applications, vol. 40, no. 4, pp. 377–383, 2012.
[18]  S. Maheshwari and B. Chaturvedi, “Additional high input low output impedance analog networks,” Active and Passive Electronic Components, vol. 2013, Article ID 574925, 9 pages, 2013.
[19]  A. A. El-Adawy, A. M. Soliman, and H. O. Elwan, “A novel fully differential current conveyor and applications for analog VLSI,” IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, vol. 47, no. 4, pp. 306–313, 2000.
[20]  M. Bhushan and R. W. Newcomb, “Grounding of capacitors in integrated circuits,” Electronics Letters, vol. 3, pp. 148–149, 1967.

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