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Optimizing Time Resolution Electronics for DMAPs

Depleted Monolithic Active Pixel Sensors (DMAPSs) are foreseen as an interesting choice for future high-energy physics experiments, mainly because of the reduced fabrication costs. However, they generally offer limited time resolution due to the stringent requirements of area and power consumption i...

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Detalles Bibliográficos
Autores principales: López-Morillo, Enrique, Luján-Martínez, Clara, Hinojo-Montero, José, Márquez-Lasso, Fernando, Palomo, Francisco Rogelio, Muñoz-Chavero, Fernando
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10346900/
https://www.ncbi.nlm.nih.gov/pubmed/37447694
http://dx.doi.org/10.3390/s23135844
Descripción
Sumario:Depleted Monolithic Active Pixel Sensors (DMAPSs) are foreseen as an interesting choice for future high-energy physics experiments, mainly because of the reduced fabrication costs. However, they generally offer limited time resolution due to the stringent requirements of area and power consumption imposed by the targeted spatial resolution. This work describes a methodology to optimize the design of time-to-digital converter (TDC)-based timing electronics that takes advantage of the asymmetrical shape of the pulse at the output of the analog front-end (AFE). Following that methodology, a power and area efficient implementation fully compatible with the RD50-MPW3 solution is proposed. Simulation results show that the proposed solution offers a time resolution of 2.08 ns for a range of energies from 1000 e(−) to 20,000 e(−), with minimum area and zero quiescent in-pixel power consumption.