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International Journal of Engineering، جلد ۳۵، شماره ۱۰، صفحات ۱۸۳۰-۱۸۴۰
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عنوان انگلیسی A 65 nm CMOS Feedforward Transimpedance Amplifier for Optical Fibers Communications
چکیده انگلیسی مقاله A series of inductor loads may not be the best design criterion for improvement in circuit performance.  In this work, the best compromise so far for the trade-off in power consumption, input referred noise current spectral density, with wide bandwidth, high transimpedance gain and low DC supply voltage is reported. A simulated 65 nm CMOS feedforward transimpedance amplifier is introduced with a series of single PMOS loads instead of a series of inductor loads. A bandwidth of 20.16 GHz with a transimpedance gain of 51.16 dBΩ, an input referred noise current spectral density of 34.3 p A⁄√Hz, a power consumption of 1.052 mW and with a 1V DC supply voltage are presented. In addition, an active inductor load (instead of inductor load) is introduced within the 65 nm CMOS feedforward transimpedance amplifier. A bandwidth of 3.75 GHz with a transimpedance gain of 42.7 dBΩ, an input referred noise current spectral density of 21.4 p A⁄√Hz, a power consumption of 0.66 mW and with a 1V DC supply voltage are reported. This 65 nm CMOS feedforward design process provides enough voltage headrom for gate-to-source terminals in amplifying transistors due to less DC voltage drop across PMOS loads. As a result, this design process consumes the lowest possible power consumption especially with the single PMOS loads as well as with the active inductor load.
کلیدواژه‌های انگلیسی مقاله Transimpedance amplifier,Wideband Amplifier,Optical Fiber Circuit,Front-End Preamplifier
نویسندگان مقاله M. S. H. Alsheikhjader |
Department of Physics, College of Science, University of Mosul, Mosul, Iraq

G. S. Aziz |
Department of Physics, College of Science, University of Mosul, Mosul, Iraq

A. I. Mustafa |
Department of Physics, College of Science, University of Mosul, Mosul, Iraq

L. M. Al Taan |
Department of Physics, College of Science, University of Mosul, Mosul, Iraq

نشانی اینترنتی https://www.ije.ir/article_150597_3fa62acf09bcf5fa0573fd54e8ff3020.pdf
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