Électronique - Micro Électronique

High Sensitivity On-Chip BiCMOS Thermometer with Differential readout and Offset Nulling

In spacecraft, all subsystems are monitored in temperature. For integrated circuits, this is crucial to compensate for thermal drifts. The thermal dependencies of the ”bandgap voltage” of p-n junctions are commonly used for ASIC thermometry. A precise and sensitive, on-chip, thermometer, with no common-mode coupling based on BiCMOS circuits will be studied. The proposed subject is focused on sensitivity optimization of a silicon based thermometer.

Dimensionnement d’une carte de régulation de tension pour application spatiale

Pendant ce stage nous proposons de travailler sur une carte de régulation de tension qui fait partie du modèle de démonstration de l'électronique frontale chaude (WFEE) de l'instrument X-IFU de la mission satellite ATHENA. Le stagiaire devra comprendre le principe de fonctionnement de ce type de circuit afin de proposer un schéma de circuit compatible avec les exigences de la conception électronique spatiale, basé sur une conception préexistante afin de l'améliorer.

Hardening of low-noise readout integrated circuits for space thermal and ionizing environment - fine on-chip thermometry & quiet triple voting

Enlarge the number of sensitive pixels put in an instrument is a classical way to improve observatories. From cosmology in the millimeter range to high-energy astrophysics space instruments, the readout of thousands of cryogenic detectors requires dedicated electronic developments. Application-Specific Integrated Circuits - ASICs offer major advantages in this context: specific design, small size and optimized performances. In addition, consumption is kept to a minimum, and the hardening by design can protect against the effects of radiation and thermal drifts faced in space.
Électronique - Micro Électronique