Analog Front-End for the Readout of LGAD-Based Particle Detectors
This paper presents an analog front-end channel for the readout of Low Gain Avalanche Diodes (LGADs) based particle detectors for the next generation of space-borne experiments. The circuit has been designed in a 65 nm CMOS technology. The charge generated by the detector is integrated by a Charge Sensitive Amplifier (CSA) with dynamic signal compression feature to achieve improved noise performance, along with enhanced time resolution capabilities over the wide range of input charge to be detected (from 45 fC to 16 pC). An RC-CR shaper with selectable shaping time, a fast discriminator and a Time-to-Amplitude Converter (TAC) complete the readout circuit. An SNR around 300, together with a time resolution of slightly below 60 ps, is achieved in post-layout simulations.
Authors
- S. Giroletti (ORCID: https://orcid.org/0009-0003-8954-7773)
- M. Manghisoni (ORCID: https://orcid.org/0000-0001-5559-0894)
- G.‐F. Dalla Betta
- L. Pancheri (ORCID: https://orcid.org/0000-0002-3954-7308)
- Lodovico Ratti (ORCID: https://orcid.org/0000-0003-1906-1076)
- F. Morsani (ORCID: https://orcid.org/0000-0001-7213-3214)
- P. Brogi (ORCID: https://orcid.org/0000-0001-7953-0271)
- C. Vacchi (ORCID: https://orcid.org/0000-0001-6118-6716)
- G. Collazuol (ORCID: https://orcid.org/0000-0002-7876-6124)
- P. S. Marrocchesi
Institutions
- University of Siena (IT)
- University of Bergamo (IT)
- University of Padua (IT)
- University of Trento (IT)
- University of Pavia (IT)
- Istituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And Applications (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Pavia (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Pisa (IT)
Publication Details
- Journal
- Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
- Published
- 2024-08-10
- DOI
- https://doi.org/10.1016/j.nima.2024.169724
- Citations
- 1
- Primary Topic
- CCD and CMOS Imaging Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.21