Analog Integrated Circuits and Signal Processing

, Volume 89, Issue 3, pp 739–747 | Cite as

Low frequency active only filters with small chip area

  • Hacer Atar Yıldız
  • Ali Toker
  • Selçuk KılınçEmail author
  • Serdar Ozoguz


In order to provide a systematic approach to the realization of filters with small chip area, two techniques which lead to a substantial reduction in the chip area occupied by MOSFET-C filters are proposed. The first method is based on using capacitance multipliers, while the second method relies on modifying the given circuit by appropriately adding cross coupled transistor pairs. Theoretical analysis and simulation results verifying the usefulness of the filters obtained through the proposed techniques are provided.


MOS-only filters Low frequency operation Allpass filters 


  1. 1.
    Ismail, M., Wassenaar, R., & Morrison, W. (1991). A high-speed continuous-time bandpass VHF filter in MOS technology. Proceedings of the IEEE ınternational symposium on circuits and systems (Vol. 3, pp. 1761–1764).Google Scholar
  2. 2.
    Thanachayanont, A. (2002). CMOS transistor-only active inductor or IF/RF applications. Proceedings of the IEEE International Conference on Industrial Technology (Vol. 2, pp. 1209–1212).Google Scholar
  3. 3.
    Karsilayan, A. & Schaumann, R. (2000). A high-frequency high-Q CMOS active inductor with DC bias control. Proceedings of the midwest symposium on 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 (Vol. 4, pp. 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. Proceedings of the IEEE International Conference on Electronics, 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. Proceedings of the International Conference on Telecommunications and Signal Processing (pp. 317–318).Google Scholar
  9. 9.
    Atar Yıldız, H., Toker, A., Kılınç, S., & Özoğuz, S. (2015). Design considerations of MOS-only allpass filters. Proceedings of 9th international conference on electrical and electronics engineering (ELECO’2015) (pp. 20–23). Bursa. Retrieved 26–28 November 2015.Google Scholar
  10. 10.
    Yuce, E., & Minaei, S. (2010). A novel phase shifter using two NMOS transistors and passive elements. Analog Integrated Circuits and Signal Processing, 62, 77–81.CrossRefGoogle Scholar
  11. 11.
    Yuce, E. (2010). A novel CMOS-based voltage-mode first-order phase shifter employing a grounded capacitor. Circuits, Systems and Signal Processing (CSSP), 29, 235–245.CrossRefzbMATHGoogle Scholar
  12. 12.
    Minaei, S., & Yuce, E. (2012). High input impedance NMOS-based phase shifter with minimum number of passive elements. Circuits, Systems and Signal Processing (CSSP), 31, 51–60.MathSciNetCrossRefGoogle Scholar
  13. 13.
    Sánchez-Sinencio, E., Geiger, R. L., & Nevárez-Lozano, H. (1988). Generation of continuous-time two integrator loop OTA-C filter structures. IEEE Transactions on Circuits and Systems, 35, 936–946.CrossRefGoogle Scholar
  14. 14.
    Veeravalli, A., Sánchez-Sinencio, E., & Silva-Martínez, J. (2002). A CMOS transconductance amplifier architecture with wide tuning range for very low frequency applications. IEEE Journal of Solid-State Circuits, 37(6), 776–781.CrossRefGoogle Scholar
  15. 15.
    Sotner, R., Petrzela, J., Jerabek, J., & Dostal, T. (2015). Reconnection-less OTA- based biquad filter with electronically reconfigurable transfers. Elektronika Ir Elektrotechnika, 21(3), 33–37.CrossRefGoogle Scholar
  16. 16.
    Sotner, R., Petrzela, J., Jerabek, J., Dostal, T. (2015). Solutions of reconnection-less OTA- based biquads with electronical transfer response reconfiguration. Proceedings of 25th international conference, radioelektronika 2015 (pp. 40–45). Pardubice: University of Pardubice, Faculty of Electrical Engineering and Informatics.Google Scholar

Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Hacer Atar Yıldız
    • 1
  • Ali Toker
    • 1
  • Selçuk Kılınç
    • 2
    Email author
  • Serdar Ozoguz
    • 1
  1. 1.Faculty of Electrical & Electronics EngineeringIstanbul Technical UniversityMaslakTurkey
  2. 2.Department of Electrical & Electronics EngineeringDokuz Eylul UniversityBucaTurkey

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