A Novel Resistive Capacitive Feedback Trans-impedance Amplifier Optimization Using IPSO Algorithm

International Journal of Smart Electrical Engineering

مقاله 4، دوره 05، شماره 01، اردیبهشت 2016، صفحه 23-29   

نوع مقاله: Research Paper

نویسندگان

Hamid Niyazi^{* 1}؛ Fakhralsadat Rastegari²؛ Majid Pourahmadi²

¹Department of Electrical Engineering, Yazd Branch, Islamic Azad University,

²Department of Electrical Engineering, Yazd Branch, Islamic Azad University

چکیده

A novel low noise trans-impedance amplifier is proposed using low cost 0.18 µm CMOS technology. A resistive-capacitive feedback is used to extend the bandwidth of the amplifier. As the structure is inductor less, it is suitable for low cost integrated optical interconnects. In this paper Improved Particle Swarm Optimization have applied to determine optimal trans-resistance and noise of proposed structure of amplifier. Simulation results showed a -3 dB bandwidth of 5 GHZ with a trans-impedance gain of ≈ 62 dB ohms. The total voltage source power dissipation is less than 5 mW that is much less than that of conventional trans-impedances. The output noise voltage spectral density is 9.5 nV/sqrt(Hz) with a peak of 15nV/sqrt(Hz), while, the input referred noise current spectral density is below 10pA/sqrt(Hz) within the amplifier frequency band.

کلیدواژه‌ها

Trans-impedance amplifier؛ resistive-capacitive feedback؛ inductor less؛ low noise؛ Low power