Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 20: DAQ, trigger and electronics I

T 20.4: Talk

Monday, March 15, 2021, 16:45–17:00, Tt

Timing Studies of KLauS6: A Low Power ASIC for Silicon Photomultiplier Charge Readout with Precise Timing — •Erik Warttmann and Konrad Briggl for the CALICE-D collaboration — Kirchhoff-Institut für Physik, Universität Heidelberg

The scintillator-based high-granular calorimeters developed within the CALICE collaboration require sophisticated front-end readout electronics, providing precise charge and time measurements of the generated Silicon-Photomultiplier (SiPM) signals, while minimizing the power consumption. The KLauS ASIC has been developed for this application, targeting low-gain SiPMs with large dynamic range. In the recent version KLauS6, a Phase Locked Loop (PLL) driven TDC has been integrated. This enables precise time measurements with 200ps time binning. The chip has been characterized using SiPMs with and without scintillating tiles. The characterization procedures and the results from lab and testbeam measurements with a particular focus on timing will be presented.