A Low-power, CMOS Optical Communication Receiver System for 5Gbps Applications based on RGC Structure

  • Sima Honarmand Department of Electrical Engineering, Beyza Branch, Islamic Azad University, Beyza, Iran.
  • Soorena Zohoori Department of Electrical Engineering, Beyza Branch, Islamic Azad University, Beyza, Iran. http://orcid.org/0000-0001-5874-9573
  • Kavoos Abbasi Department of Physics, College of Science, Yasouj University, Yasouj, Iran
Keywords: Optical Receiver, Low-Power, Transimpedance Amplifier, Limiting Amplifier, Regulated Cascode

Abstract

An optical communication receiver system is presented in this research using 65nm CMOS, which consists of three low-power active differential stages as Limiting Amplifier (LA) following an ultra-low-power RGC-Based Transimpedance Amplifier (RB-TIA). The presented active circuit of the RB-TIA is followed by a gain stage that extends the -3dB frequency of the circuit by creating a resonance for the load capacitance. Thus, needless of consuming extra power, a wide-bandwidth circuit has been designed. In addition, employing active-inductor loads within the LA stages enables obtaining a 5Gbps receiver system. The RB-TIA consumes 573µW and provides 3.52GHz frequency, while the complete optical receiver consumes only 4.76mW power to provide -3dB frequency of 3.5GHz and high gain of 80dB (10’000). The circuits have been mathematically presented and discussed, and simulations have justified the presented circuit design.

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Published
2020-12-01
How to Cite
Honarmand, S., Zohoori, S., & Abbasi, K. (2020). A Low-power, CMOS Optical Communication Receiver System for 5Gbps Applications based on RGC Structure. Majlesi Journal of Electrical Engineering, 14(4), 57-66. https://doi.org/https://doi.org/10.29252/mjee.14.4.57
Section
Articles