Journal
2021 28TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS, AND SYSTEMS (IEEE ICECS 2021)
Volume -, Issue -, Pages -Publisher
IEEE
DOI: 10.1109/ICECS53924.2021.9665553
Keywords
Transimpedance amplifier; Capacitive TIA; Analytical model; Pareto frontier; Topology boundaries; R-TIA; C-TIA
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This paper proposes a comprehensive model of capacitive feedback transimpedance amplifiers, which is validated by comparing with circuit simulations. A comparative assessment between capacitive and resistive topologies in terms of performance is provided, highlighting the superior performance of capacitive feedback transimpedance amplifiers.
This paper proposes a comprehensive model of capacitive feedback transimpedance amplifiers, based on an analysis of the parasitics and non-idealities of the system. The proposed model is in good agreement with circuit simulations (less than 2% error on the gain and 18% on the bandwidth for large set of parameters), and allows to compute the analytical boundaries of the capacitive topology. Finally, a comparative assessment between capacitive and resistive topologies in terms of performance is proposed and highlights the salient performances of capacitive feedback transimpedance amplifiers.
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