| Issue |
EPJ Web Conf.
Volume 320, 2025
20th International Conference on Calorimetry in Particle Physics (CALOR 2024)
|
|
|---|---|---|
| Article Number | 00037 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.1051/epjconf/202532000037 | |
| Published online | 07 March 2025 | |
https://doi.org/10.1051/epjconf/202532000037
HKROC: An integrated front-end ASIC to read out photomultiplier tubes for large neutrino experiments
1 OMEGA, CNRS, École polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France
2 Laboratoire Leprince Ringuet, École polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France
3 IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
4 AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
5 Université Paris-Saclay, France
* Corresponding author: fdulucq@in2p3.fr
Published online: 7 March 2025
The HKROC ASIC was originally designed to read out the photomultiplier tubes (PMTs) for the Hyper-Kamiokande (HK) experiment. HKROC is a very innovative ASIC capable to read out a large number of channels satisfying stringent requirements in terms of noise, speed and dynamic range. Each HKROC channel features a low-noise preamplifier and shapers, a 10-bit successive approximation Analog-to-Digital Converter (SAR-ADC) for the charge measurement (up to 2500 pC) and a Time-to-Digital Converter (TDC) for the Time-of-Arrival (ToA) measurement with 25 ps binning. HKROC is auto-triggered and includes all necessary ancillary services as bandgap circuit, PLL (Phase-locked loop) and threshold DACs (Digital to Analog Converters). This presentation will describe the ASIC architecture and the experimental results of the last prototype received in January 2022.
© The Authors, published by EDP Sciences, 2025
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