A 0.4 V Low Frequency Voltage-Controlled Ring Oscillator Using DTMOS Technique

  • Saber Izadpanah tous Sadjad Institute for Higher Education
  • Ensieh Asghari Sadjad Institute for Higher Education
  • Reza Pourandoost Sadjad Institute for Higher Education
  • Behrooz Razeghi Ferdowsi University


In this paper, an ultra-low power ultra-low voltage five-stage low frequency voltage–controlled single-ended ring oscillator using dynamic threshold voltage MOSFET (DTMOS) is presented. The proposed oscillator is designed and simulated using TSMC 0.18μm RF CMOS technology with 0.4 V power supply. In this design all transistors working at the sub-threshold (weak inversion) region. The output frequency ranges from 26.6-210.5 kHz with control voltages of 0 V to 0.4 V. Its power consumption and phase noise at a 100 kHz offset at the minimum(maximum) oscillation frequency is respectively 6.42nW (8.62 nW) and -120.5 dBc/Hz (-113.15 dBc/Hz).


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How to Cite
Izadpanah tous, S., Asghari, E., Pourandoost, R., & Razeghi, B. (2013). A 0.4 V Low Frequency Voltage-Controlled Ring Oscillator Using DTMOS Technique. Majlesi Journal of Telecommunication Devices, 2(1). Retrieved from http://journals.iaumajlesi.ac.ir/td/index/index.php/td/article/view/84