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A Review of Modern CMOS Transimpedance Amplifiers for OTDR Applications

1
Department of Computer Science and Communications Technologies, Vilnius Gediminas Technical University, 10257 Vilnius, Lithuania
2
Micro and Nanoelectronics Systems Design and Research Laboratory, Vilnius Gediminas Technical University, 10257 Vilnius, Lithuania
*
Author to whom correspondence should be addressed.
Electronics 2019, 8(10), 1073; https://doi.org/10.3390/electronics8101073
Received: 16 August 2019 / Revised: 12 September 2019 / Accepted: 19 September 2019 / Published: 22 September 2019
(This article belongs to the Section Microelectronics and Optoelectronics)
The work presents a review of modern CMOS transimpedance amplifiers (TIAs) in the context of their application for low-cost optical time-domain reflectometry (OTDR). After introducing the basic principles behind the OTDR, the requirements for a suitable CMOS TIA are presented and discussed. A concise review of several basic TIA topologies is provided with a brief overview of their main properties. A detailed discussion is given on a representative set of approaches reported in the literature and the figure of merit (FOM) is introduced as a unified basis for performance comparison. Limitations of a single FOM as a basis for comparison are pointed out. Based on the provided discussion, some suggestions are made on the suitability of the TIA topologies for OTDR applications. View Full-Text
Keywords: capacitive-feedback amplifier; CMOS integrated circuits; low-noise and high-gain amplifier; optical time-domain reflectometer; performance metrics; shunt-shunt feedback amplifier; transimpedance amplifier capacitive-feedback amplifier; CMOS integrated circuits; low-noise and high-gain amplifier; optical time-domain reflectometer; performance metrics; shunt-shunt feedback amplifier; transimpedance amplifier
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MDPI and ACS Style

Romanova, A.; Barzdenas, V. A Review of Modern CMOS Transimpedance Amplifiers for OTDR Applications. Electronics 2019, 8, 1073.

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