This work introduces design and simulation validation, of a monolithic setup, based on a current amplifier, for accurate gate current measurement in NMOS devices integrated in 28nm technology. The Devices-Under-Test (DUTs) include transistors with gate width between 60μm and 300μm and length between 400nm and 1μm. Current in the DUT is amplified by a 100x factor, with an accuracy above 90%....
This work outlines the measurements done to evaluate the second SPACIROC generation in ionizing radiation environments, i.e., particle beams: ions, protons, and X-rays. The SPACIROCs are front-end ASICs designed for the readout requirements of photomultiplier technologies like: SiPMs, MaPMTs. Several radiation-induced effects were observed but they proved to be benign application-wise. The...
VFAT3 is the 128-channel charge-sensitive front-end chip explicitly designed for the CMS GEM phase-2 upgrades. LHC is undergoing major upgrades for HL-LHC where the particle rate is expected to increase up to 5 times. It is therefore necessary to monitor the evolution of the VFAT3 response due to aging in the radiation environment by total ionizing dose (TID) tests. The device operation could...
The upgrade of the ATLAS TileCal for the HL-LHC uses a Daughterboard that serves as a hub interfacing the on-detector with the off-detector electronics. The Daughterboard design features ProASIC FPGAs, Kintex Ultrascale FPGAs and CERN GBTx ASICs. The design minimizes single points of failure and radiation damage by employing a double-redundant scheme, using TMR and Xilinx SEM strategies,...
This work analyses seven different alternatives to implement an ADC based on the successive approximation register (SAR) architecture. The influence of the encoding is taken into account while evaluating the importance of its reset approach. Different protection strategies against single event upsets are addressed, including the comparison of per module and per cell triplication. All versions...
The ATLAS Muon System will be upgraded for the High-Luminosity phase of LHC. Its new on-detector electronics should withstand a non-ionizing dose equivalent to 10^13 n/cm2 (1 MeV eq on Si) and have a negligible rate of single-event effects. Commercial low-dropout (LDO) voltage regulators have been considered as a practical solution for powering on-detector electronics. We present results from...
