ALDO2 is a multi-function, adjustable, low dropout linear regulator designed in onsemi I3T80 0.35μm HV CMOS technology for use in HEP detectors that adopt silicon photomultipliers (SiPMs). The chip features four independent regulators, two low voltage channels (max 3.3 V) used to filter and stabilize the power supply of front-end chips, and two HV channels (max 70 V), specifically designed to provide the bias voltage to arrays of SiPMs. Each regulator can be independently shut down and is protected for over-current and over-temperature. The HV regulators also implement a circuit to monitor the bias current of the SiPM arrays, allowing to perform I–V curves and thus to fine-tune the working point of the SiPM arrays during the detector lifetime. The chip adopts radiation hardening techniques and has been fully qualified up to a TID of 20 Mrad, a 1-MeV-equivalent neutron fluence of 1015 cm−2, and with heavy ions up to 40 MeV cm2 mg−1 LET and 1010 cm−2 cumulative fluence. The chip will be installed in two CMS detectors in the HL-LHC phase, the Barrel Timing Detector (BTL) and the High Granularity Calorimeter (HGCAL).

Carniti, P., Gotti, C., Pessina, G. (2022). ALDO2, a multi-function rad-hard linear regulator for SiPM-based HEP detectors. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 1039(11 September 2022) [10.1016/j.nima.2022.167028].

ALDO2, a multi-function rad-hard linear regulator for SiPM-based HEP detectors

P. Carniti
;
C. Gotti;G. Pessina
2022

Abstract

ALDO2 is a multi-function, adjustable, low dropout linear regulator designed in onsemi I3T80 0.35μm HV CMOS technology for use in HEP detectors that adopt silicon photomultipliers (SiPMs). The chip features four independent regulators, two low voltage channels (max 3.3 V) used to filter and stabilize the power supply of front-end chips, and two HV channels (max 70 V), specifically designed to provide the bias voltage to arrays of SiPMs. Each regulator can be independently shut down and is protected for over-current and over-temperature. The HV regulators also implement a circuit to monitor the bias current of the SiPM arrays, allowing to perform I–V curves and thus to fine-tune the working point of the SiPM arrays during the detector lifetime. The chip adopts radiation hardening techniques and has been fully qualified up to a TID of 20 Mrad, a 1-MeV-equivalent neutron fluence of 1015 cm−2, and with heavy ions up to 40 MeV cm2 mg−1 LET and 1010 cm−2 cumulative fluence. The chip will be installed in two CMS detectors in the HL-LHC phase, the Barrel Timing Detector (BTL) and the High Granularity Calorimeter (HGCAL).
Articolo in rivista - Articolo scientifico
Barrel Timing Layer; Bias voltage; CMOS; High-Granularity Calorimeter; HL-LHC; LDO; MPPC; Rad-hard; SiPM; Voltage regulator;
English
21-giu-2022
2022
1039
11 September 2022
167028
none
Carniti, P., Gotti, C., Pessina, G. (2022). ALDO2, a multi-function rad-hard linear regulator for SiPM-based HEP detectors. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 1039(11 September 2022) [10.1016/j.nima.2022.167028].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/399786
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