An Active Inductor Based Transimpedance Amplifier with Two Local Feedbacks as a Fiber Optic Application

Al-Berwari, Ruwaida A.; Hameed Alsheikhjader, Muhammed

doi:10.33899/rjs.2023.178574

	An Active Inductor Based Transimpedance Amplifier with Two Local Feedbacks as a Fiber Optic Application
Rafidain Journal of Science
Volume 32, Issue 2, June 2023, Pages 38-52 PDF (929.26 K)
Document Type: Research Paper
DOI: 10.33899/rjs.2023.178574
Authors
Ruwaida A. Al-Berwari^* ¹; Muhammed Hameed Alsheikhjader^* ²
¹Department of Physics/ College of Science/ University of Mosul
²Department of Physics, College of Science, University of Mosul
Abstract
An important use of active inductor feedback is reported. It was evident that a frequency dependent impedance of an active inductor is similar to that of an ordinary spiral inductor which is a key advantage in integrated circuit design given the fact that Mosfet-based active inductor circuit occupies less volume on board a chip. In this work, a 42 dBΩ transimpedance (TIA) gain at 1 GHz is obtained with 33 𝑝𝐴⁄√𝐻𝑧 of input referred noise with a very low power consumption of 0.605 mW. The Common-Gate Common-Source input stage with an active inductor feedback is reported in this work for the first-time long side a second stage current mirror with additional local active inductor feedback. The extremely low level of power consumption is considered to be another key advantage for that matter despite the moderate levels of TIA gain, bandwidth and input-referred noise current spectral density with 1V DC supply voltage. The LTspice software was used for simulation.
Keywords
Common-gate (CG) amplifier; Common-source (CS) amplifier; Active feedback; Current mirror

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