Journal Article

Optimizing Time Resolution Electronics for DMAPs

Hinojo-Montero, José, Luján-Martínez, Clara, Palomo, Francisco Rogelio, Márquez-Lasso, Fernando, Muñoz-Chavero, Fernando, López-Morillo, Enrique

2023

Overview

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.

• Publisher: MDPI AG,MDPI
• Subject: Accuracy / Computer Simulation / depleted monolithic active pixel sensors (DMAPSs) / Electronics / Energy / Experiments / Large Hadron Collider (LHC) / low power / pixel detector / Positron-Emission Tomography - methods / Receivers & amplifiers / Sensors / Time Factors / time walk / timing