We present results from a TID test up to 100 Gy on LSF0102 voltage translators, intended for use on the new Data-Collector-Transmitter (DCT) boards for the upgraded ATLAS muon spectrometer at HL-LHC. LSF0102 is a MOSFET-based device designed for voltage translation between logic domains. Impedance spectroscopy measurements enabled modeling of the LSF0102 circuit as an RC parallel network in series with a resistor. No variation was found in oxide capacitance and series resistance, while a moderate reduction in the parallel resistance was observed, without impact on device operation. During irradiation, current consumption remained stable. Only a minor threshold voltage shift of 6 mV was observed in the LSF0102 MOSFETs. These results confirm the suitability of LSF0102 devices for use under TID levels expected in the ATLAS muon spectrometer at the HL-LHC.
TID reliability of voltage translators for the ATLAS muon trigger system / Casolaro, P.; Izzo, V.; Perrella, S.; Vari, R.; Vanzanella, A.; Principe, C.; Di Meo, P.; Anastasio, A.; Imtiaz, A.; Aloisio, A.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 21:04(2026). ( Topical Workshop on Electronics for Particle Physics) [10.1088/1748-0221/21/04/c04013].
TID reliability of voltage translators for the ATLAS muon trigger system
Casolaro, P.
Primo
;Aloisio, A.Ultimo
2026
Abstract
We present results from a TID test up to 100 Gy on LSF0102 voltage translators, intended for use on the new Data-Collector-Transmitter (DCT) boards for the upgraded ATLAS muon spectrometer at HL-LHC. LSF0102 is a MOSFET-based device designed for voltage translation between logic domains. Impedance spectroscopy measurements enabled modeling of the LSF0102 circuit as an RC parallel network in series with a resistor. No variation was found in oxide capacitance and series resistance, while a moderate reduction in the parallel resistance was observed, without impact on device operation. During irradiation, current consumption remained stable. Only a minor threshold voltage shift of 6 mV was observed in the LSF0102 MOSFETs. These results confirm the suitability of LSF0102 devices for use under TID levels expected in the ATLAS muon spectrometer at the HL-LHC.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
