On the realization of NPN-only long-domain chaotic oscillators

Serdar Özoǧuz*, Neslihan S. Şengör

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Two new chaotic oscillators with double-scroll dynamics based on the log-domain circuit-design technique are presented. As the circuits operate in log domain, they are suitable for low-voltage, high-frequency operation. The important key parameters of the oscillators are electronically tunable, thus, they are well suited for integrated circuit implementation. Furthermore, the circuits do not employ any PNP transistors, hence they can be implemented in cheap bipolar processes, which do not offer high-quality vertical PNPs. Experimental results verifying the feasibility of the circuits are given.

Original languageEnglish
Pages (from-to)291-294
Number of pages4
JournalIEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
Issue number2
Publication statusPublished - Feb 2003


Manuscript received January 8, 2002; revised July 23, 2002. The work of S. Özog˘uz was supported by the TÜBA/GEBIP Program under Grant ISO/T BA-GEBIP/2002–1–16. This paper was recommended by Associate Editor A. Ushida.

FundersFunder number


    • Analog and mixed analog/digital circuits
    • Log-domain circuits
    • Nonlinear circuit design


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