Erlangen 2026 – scientific programme

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T: Fachverband Teilchenphysik

T 49: Electronics, Trigger, DAQ II

T 49.4: Talk

Wednesday, March 18, 2026, 17:00–17:15, KH 00.023

Upgrade of the KlauS6 ASIC — •Yung-Wei Chang — Im Neuenheimer Feld 227, 69120 Heidelberg

In this talk, we share recent work on the KLauS ASIC, which was designed for the prototype of CALICE collaboration’s Analog Hadron CALorimeter (AHCAL) and now is undergoing significant enhancements to its digital blocks and IOs to better meet the needs of future experimental applications in particle physics. The next generation of the KlauS6 ASIC will emphasize improvements in its digital interface robustness, aim at achieving higher measurement data rate and increased adaptability in experimental settings. As in previous versions, the new design incorporates strategies for low power consumption with the requirements of high-density channel applications, ensuring that the KLauS ASIC remains a cutting-edge solution for scintillator-based calorimetry in future collider experiments.

Key features of the upgraded KlauS6c include dual-configurable interfaces via both I2C and SPI, which will facilitate integration with various systems and enhance operational flexibility. Furthermore, the ASIC will support numerous speed options of LVDS readout exceeding 160 Mbps, ensuring rapid data transmission to accommodate the demands of future circular collider (FCC) experiments. Improved packaging options, compatible with QFN84 and QFN100, will provide greater reliability and ease of integration. The upgraded KlauS6c will maintain its core functionalities still on high precision charge measurement and a wide dynamic range, allowing for comprehensive and precise silicon photomultiplier (SiPM) readout behavior.

Keywords: SiPM readout; ASIC