SALSA: a new versatile readout chip for MPGD detectors

• DOI: 10.48550/arxiv.2501.10237
• Publication Date: 2025-01-01
• Authors: Neyret, D.; Baron, P.; Bouyjou, F.; Bregant, M.; Chevobbe, S.; Dergerli, Y.; Flouzat, C.; Gevin, O.; Guilloux, F.; Hernandez, H.; Mandjavidze, I.; Munhoz, M.; Sanches, B.; Severo, L.; Soares, J. N.; Van Noije, W.; da Costa, F. William
• Keywords: Physics - Instrumentation and Detectors; FOS: Physical sciences; Instrumentation and Detectors (physics.ins-det)

The SALSA chip is a future readout ASIC foreseen for the MPGD detectors, developed in the framework of the EIC collider project, to equip the MPGD trackers of the EPIC experiment. It is designed to be versatile, to be adapted to other usages of MPGD detectors like TPC or photon detectors. It integrates a frontend block and an ADC for each of the 64 channels, associated to a configurable DSP processor meant to correct data and reduce the raw data flux to limit the output bandwidth. It will be compatible with the continuous readout foreseen for the EPIC DAQ, but will also work in a triggered environment. Several prototypes are already produced in order to qualify the different blocks of the chip, in particular the frontend, the ADC and the clock generation. The next 32-channel prototype is currently under development and is planed to be produced in 2025. The final prototype will be produced and tested from 2026 for a production of the SALSA chip at the horizon of 2027. Keywords: Micro-patterned Gaseous Detectors (MPGD), Readout electronics, Readout ASIC, Data processing, EIC project, EPIC experiment<br/>5 pages, 4 figures, 1 table, submitted to JINST journal as proceedings of the 8th International Conference on Micro-Pattern Gaseous Detectors, Oct.14th - Oct.18th 2024 USTC Hefei, China<br/>