MOS-only allpass filters with extended operating frequency range

  • Hacer A. Yıldız
  • Ali Toker
  • Ahmed S. Elwakil
  • Serdar Ozoguz


Although the design of integrated filters using MOS-only circuits provides some vital advantages, these circuits are inherently prone to have limited operating frequency range. This fact leads to a poor tunability range and seriously degrades the usefulness of this class of filters. In order to address this issue, two methods are presented and detailed simulation results verifying the feasibility of the techniques are provided.


Active-only filters Allpass filters Analog filter design 


  1. 1.
    Ismail, M., Wassenaar, R., & Morrison, W. (1991). “A high-speed continuous-time bandpass VHF filter in MOS technology”. In Proceedings of the IEEE International Symposium on Circuits and Systems (vol 3, pp. 1761–1764). Singapore: IEEE.Google Scholar
  2. 2.
    Thanachayanont, A. (2002). “CMOS transistor-only active inductor or IF/RF applications”. In Proceedings of the IEEE International Conference on Industrial Technology (vol 2, pp. 1209–1212). Bangkok: IEEE.Google Scholar
  3. 3.
    Karsilayan, A., & Schaumann, R. (2000). “A high-frequency high-Q CMOS active inductor with DC bias control”. In Proceedings of the IEEE International Symposium for Circuits and Systems (pp. 486–489).Google Scholar
  4. 4.
    Ngowand, S., & Thanachayanont, A. (2003). A low-voltage wide dynamic range CMOS floating active inductor. Proceedings of the Conference on Convergent Technologies for Asia-Pacific Region, 4, 1640–1643.Google Scholar
  5. 5.
    Uyanik, H., & Tarim, N. (2007). Compact low voltage high-Q CMOS active inductor suitable for RF applications. Analog Integrated Circuits and Signal Processing, 51, 191–194.CrossRefGoogle Scholar
  6. 6.
    Thanachayanont, A., & Payne, A. (1996). VHF CMOS integrated active inductor. IEE Electronics Letters, 32, 999–1000.CrossRefGoogle Scholar
  7. 7.
    Manetakis, K., Park, S., Payne, A., Setty, S., Thanachayanont, A., & Toumazou, C. (1996). “Wideband CMOS analog cells for video and wireless communications”. In Proceedings of the IEEE Conference on Electronic Circuits and Systems (pp. 227–230).Google Scholar
  8. 8.
    Metin, B., Arslan, E., Herencsar, N., & Cicekoglu, O. (2011). “Voltage-mode MOS-only all-pass filter”. In Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (pp. 317–318).Google Scholar
  9. 9.
    Yıldız, H. A., Ozoguz, S., Toker, A., & Çiçekoğlu, O. (2013). “MOS-only allpass filters with extended operating frequency range”. In ELECO 8th International Conference on Electrical and Electronics Engineering (ELECO) (pp. 36–39).Google Scholar
  10. 10.
    Shu, K., Sinencio, E. S., Martinez, J. S., & Embabi, S. H. K. (2003). “A 2.4 GHz monolithic fractional-N frequency synthesizer with robust phase-switching prescaler and loop capacitance multiplier”. IEEE Journal of Solid State Circuits, 38, 866–874.Google Scholar
  11. 11.
    Seguin, F., Alicalapa, F., & Fabre, A. (2002). “Conveyor-based high frequency current controlled C-multiplier”. In OPTIM 8th International Conference on Optimisation of Electrical and Electronic Equipment (OPTIM) (pp. 643–645).Google Scholar
  12. 12.
    Yildiz, H. A., Ozoguz, S., Toker, A., & Cicekoglu, O. (2013). On the realization of MOS-only allpass filters. Circuits, Systems, and Signal Processing, 32, 1455–1465.CrossRefGoogle Scholar
  13. 13.
    Thoumazou, C., Lidgey, F. J., & Haigh, D. G. (1993). “Analog integrated circuits: The current mode approach”. In IEEE Circuit and Systems Series 2 (books). Dordrecht: Kluwer Academic Publishers.Google Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Hacer A. Yıldız
    • 1
  • Ali Toker
    • 1
  • Ahmed S. Elwakil
    • 2
  • Serdar Ozoguz
    • 1
  1. 1.Faculty of Electrical and Electronic EngineeringIstanbul Technical UniversityIstanbulTurkey
  2. 2.University of SharjahSharjahUAE

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