Design of the analog front-end for the Timepix3 and Smallpix hybrid pixel detectors in 130 nm CMOS technology

This paper describes a front-end for hybrid pixel readout chips, which was developed for the Timepix3 and Smallpix ASICs. The front-end contains a single-ended preamplifier with a structure for leakage current compensation which can handle both signal polarities, and a single-threshold discriminator...

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Detalles Bibliográficos
Autores principales: Gaspari, M De, Alozy, J, Ballabriga, R, Campbell, M, Fröjdh, E, Idarraga, J, Kulis, S, Llopart, X, Poikela, T, Valerio, P, Wong, W
Lenguaje:eng
Publicado: 2014
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1088/1748-0221/9/01/C01037
http://cds.cern.ch/record/2025861
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author Gaspari, M De
Alozy, J
Ballabriga, R
Campbell, M
Fröjdh, E
Idarraga, J
Kulis, S
Llopart, X
Poikela, T
Valerio, P
Wong, W
author_facet Gaspari, M De
Alozy, J
Ballabriga, R
Campbell, M
Fröjdh, E
Idarraga, J
Kulis, S
Llopart, X
Poikela, T
Valerio, P
Wong, W
author_sort Gaspari, M De
collection CERN
description This paper describes a front-end for hybrid pixel readout chips, which was developed for the Timepix3 and Smallpix ASICs. The front-end contains a single-ended preamplifier with a structure for leakage current compensation which can handle both signal polarities, and a single-threshold discriminator with compensation for pixel-to-pixel mismatch. Preamplifier and discriminator are required to be fast, to allow a Time-Of-Arrival (TOA) measurement with a resolution of 1.56 ns. Time-Over-Threshold (TOT) is also measured, the monotonicity of TOT with respect to the input charge is greatly improved as compared to the previous Timepix chip. The analog area is only 55 μm × 13.5 μm. Timepix3 has already been fabricated and the first test results are also presented in this paper.
id oai-inspirehep.net-1327678
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling oai-inspirehep.net-13276782019-09-30T06:29:59Zdoi:10.1088/1748-0221/9/01/C01037http://cds.cern.ch/record/2025861engGaspari, M DeAlozy, JBallabriga, RCampbell, MFröjdh, EIdarraga, JKulis, SLlopart, XPoikela, TValerio, PWong, WDesign of the analog front-end for the Timepix3 and Smallpix hybrid pixel detectors in 130 nm CMOS technologyDetectors and Experimental TechniquesThis paper describes a front-end for hybrid pixel readout chips, which was developed for the Timepix3 and Smallpix ASICs. The front-end contains a single-ended preamplifier with a structure for leakage current compensation which can handle both signal polarities, and a single-threshold discriminator with compensation for pixel-to-pixel mismatch. Preamplifier and discriminator are required to be fast, to allow a Time-Of-Arrival (TOA) measurement with a resolution of 1.56 ns. Time-Over-Threshold (TOT) is also measured, the monotonicity of TOT with respect to the input charge is greatly improved as compared to the previous Timepix chip. The analog area is only 55 μm × 13.5 μm. Timepix3 has already been fabricated and the first test results are also presented in this paper.oai:inspirehep.net:13276782014
spellingShingle Detectors and Experimental Techniques
Gaspari, M De
Alozy, J
Ballabriga, R
Campbell, M
Fröjdh, E
Idarraga, J
Kulis, S
Llopart, X
Poikela, T
Valerio, P
Wong, W
Design of the analog front-end for the Timepix3 and Smallpix hybrid pixel detectors in 130 nm CMOS technology
title Design of the analog front-end for the Timepix3 and Smallpix hybrid pixel detectors in 130 nm CMOS technology
title_full Design of the analog front-end for the Timepix3 and Smallpix hybrid pixel detectors in 130 nm CMOS technology
title_fullStr Design of the analog front-end for the Timepix3 and Smallpix hybrid pixel detectors in 130 nm CMOS technology
title_full_unstemmed Design of the analog front-end for the Timepix3 and Smallpix hybrid pixel detectors in 130 nm CMOS technology
title_short Design of the analog front-end for the Timepix3 and Smallpix hybrid pixel detectors in 130 nm CMOS technology
title_sort design of the analog front-end for the timepix3 and smallpix hybrid pixel detectors in 130 nm cmos technology
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1088/1748-0221/9/01/C01037
http://cds.cern.ch/record/2025861
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AT wongw designoftheanalogfrontendforthetimepix3andsmallpixhybridpixeldetectorsin130nmcmostechnology

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