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:: Volume 6, Issue 2 (2-2020) ::
JNSEE 2020, 6(2): 32-50 Back to browse issues page
Analyzing the Effect Adding an Active Feedback Network with an Inductive behavior to a Common-Gate Topology as a Transimpedance Amplifier for Low-Power and Wide-Band Communication Applications
Mehdi Dolatshahi, Seyed Mehdi Mirsanei, Mehrdad Amirkhan Dehkordi, Soorena Zohoori
2Department of Electrical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran. , soorena_z7@yahoo.com
Abstract:   (3650 Views)
  Common Gate (CG) topologies are commonly used as the first stage in Transimpedance Amplifiers (TIA), due to their low input resistance. But, this structure is not solely used as a TIA and comes with other topologies such as differential amplifiers or negative resistances and capacitances. This paper deals with analyzing the effect of adding an active feedback network to a common gate topology. Generally, the feedback network is used to reduce the input resistance of the CGs topology, but in this paper it is shown that an active feedback network, which occupies a small area, not only reduces further the input resistance of CG topologies, but also forms an active inductive behavior, which can be used to resonate with the large parasitic capacitance of the photodiode and hence obtain a wide bandwidth. Mathematical analysis is done in this paper to prove the existence of this active inductor, which is also proved in the simulations. Finally, it is shown that this stage alongside its active feedback can be used as a high-speed and low-power transimpedance amplifier for optical communication applications.
Keywords: Transimpedance amplifier, optical communication receiver, Active feedback, Low power, Wide bandwidth.
Full-Text [PDF 756 kb]   (335 Downloads)    
Type of Study: Research | Subject: Analog circuits
Received: 2019/11/30 | Accepted: 2020/03/13 | Published: 2020/09/6
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Dolatshahi M, Mirsanei S M, Amirkhan Dehkordi M, Zohoori S. Analyzing the Effect Adding an Active Feedback Network with an Inductive behavior to a Common-Gate Topology as a Transimpedance Amplifier for Low-Power and Wide-Band Communication Applications. JNSEE. 2020; 6 (2) :32-50
URL: http://jnsee.sut.ac.ir/jnsee/article-1-306-en.html


Volume 6, Issue 2 (2-2020) Back to browse issues page
سامانه های غیرخطی در مهندسی برق Journal of Nonlinear Systems in Electrical Engineering
نشریه سامانه‌های غیرخطی در مهندسی برق در خصوص اصول اخلاقی انتشار مقاله، از توصیه‌های «کمیته بین‌المللی اخلاق نشر» موسوم به COPE و «منشور و موازین اخلاق پژوهش» مصوب معاونت پژوهش و فناوری وزارت علوم، تحقیقات و فناوری تبعیت می‌کند.
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