Abstract
This paper presents a new compact CMOS capacitance multiplier. The multiplier is based on using the translinear principle with MOSFETs operating in subthreshold region. The multiplication factor is controllable to meet the designer requirements. Tanner TSPICE simulator was used to confirm the functionality of the design in 0.18 µm CMOS Technology. The circuit operates from ±0.75 supply voltage. Simulation results indicate that the multiplication factor can be varied from 10 to 300. The functionality of the proposed capacitance multiplier was demonstrated by using it in designing a low pass filter and a relaxation oscillator.
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Abuelma’Atti, M. T., & Tasadduq, N. A. (1999). Electronically tunable capacitance multiplier and frequency-dependent negative-resistance simulator using the current-controlled current conveyor. Microelectronics Journal, 30(9), 869–873.
Aguado-Ruiz, J., Hernandez-Alvidrez, J., Lopez-Martin, A. J., Carvajal, R. G., & Ramirez-Angulo, J. (2009). Programmable capacitance scaling scheme based on operational transconductance amplifiers. Electronics Letters, 45(3), 159–161.
Aguado-Ruiz, J., Lopez-Martin, A. J., & Ramirez-Angulo, J. (2012). Three novel improved CMOS C-multipliers. International Journal of Circuit Theory and Applications, 40(6), 607–616.
Ahmed, M. T., Khan, I. A., & Minhaj, N. (1995). Novel electronically tunable C-multipliers. Electronics Letters, 31(1), 9–11.
Chen, C.-H., Mak, P.-I, Zhang, T.-T., Vai, M.-I., Mak, P.-U., Pun, S.-H., Wan, F. & Martins, R. (June, 2009). A 2.4 Hz to 10 kHz-tunable biopotential filter using a novel capacitor multiplier. In Asia Pacific Conference on postgraduate research in microelectronics & electronics—PrimeAsia (pp. 372–375).
Cicekoglu, O., Toker, A., & Kuntman, H. (2001). Universal immittance function simulators using current conveyors. Computers & Electrical Engineering, 27(3), 227–238.
Jantakun, A. (2015). A simple grounded FDNR and capacitance simulator based-on CCTA. AEU International Journal of Electronics and Communications, 69(6), 950–957.
Kafe, F., & Psychalinos, C. (2014). Realization of companding filters with large time-constants for biomedical applications. Analog Integrated Circuits and Signal Processing, 78, 217–231.
Kartci, A., Ayten, U. E., Herencsar, N., Sotner, R., Jerabek, J. & Vrba, K. (2015). Floating capacitance multiplier simulator for grounded RC colpits oscillator design. In Proceedings of the IEEE international conference on applied electronics (pp. 93–96)
Khan, A. A., Bimal, S., Dey, K. K., & Roy, S. S. (2002). Current conveyor based R-and C-multiplier circuits. International Journal of Electronics and Communications, 56(5), 312–316.
Kulej, T. (2009). Regulated capacitance multiplier in CMOS technology. In International conference on mixed design of integrated circuits and systems (pp. 316–319).
Martinez, J. S. & Vazquez-Gonzalez, A. (1998). Impedance scalars for IC active filters. In IEEE international symposium on circuits and systems (pp.151–154).
Myderrizi, I., & Zeki, A. (2014). Electronically tunable DXCCII-based grounded capacitance multiplier. AEU International Journal of Electronics and Communications, 68(9), 899–906.
Rivera-Escobar, C., Silva-Del-Rosario, F., Silva, M., & Padilla-Cantoya, I. (2013). Multiple stage capacitor multiplier using dual-output differential amplifiers. In IEEE fourth American symposium on circuits and systems (pp. 1–3).
Solis-Bustos, S., Silva-Martinez, J., Maloberti, F., & Sanchez-Sinencio, E. (2000). 2.4-Hz low-pass filter for medical applications. IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 47(12), 1391–1398.
Stotts, L. J. (1989). Introduction to implantable biomedical IC design. IEEE Circuits and Devices Magazine, 5(1), 12–18.
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This work is a partial result of the research work funded by KFUPM, Project # IN 131066.
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Al-Absi, M.A., Al-Suhaibani, E.S. & Abuelma’atti, M.T. A new compact CMOS C-multiplier. Analog Integr Circ Sig Process 90, 653–658 (2017). https://doi.org/10.1007/s10470-016-0822-1
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DOI: https://doi.org/10.1007/s10470-016-0822-1