28 nm CMOS analog front-end channels for future pixel detectors

被引:2
|
作者
Gaioni L. [1 ,3 ]
Fratus M. [3 ]
Galliani A. [3 ]
Manghisoni M. [1 ,3 ]
Ratti L. [2 ,3 ]
Re V. [1 ,3 ]
Riceputi E. [1 ,3 ]
Traversi G. [1 ,3 ]
机构
[1] Università di Bergamo, Dalmine (BG)
[2] Università di Pavia, Pavia
[3] INFN, Sezione di Pavia, Pavia
关键词
28 nm CMOS; Falaphel project; Front-end electronics; Future HEP experiments;
D O I
10.1016/j.nima.2022.167609
中图分类号
学科分类号
摘要
This work discusses the design, carried out in the framework of the INFN Falaphel project, of analog front-end circuits for future, high-rate pixel detector applications. In particular, two front-end architectures are being developed, one with Time-over-Threshold (ToT) digitization of the input signal and the other based on an in-pixel flash ADC featuring a novel, clocked comparator conceived to dramatically reduce the threshold dispersion of the front-end. The paper includes a description of the analog processors being developed. The main analog performance parameters, as obtained from circuit simulations and including equivalent noise charge and threshold dispersion, are reported. © 2022 Elsevier B.V.
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