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T: Fachverband Teilchenphysik

T 49: Electronics, Trigger, DAQ II

T 49.2: Vortrag

Mittwoch, 18. März 2026, 16:30–16:45, KH 00.023

Compact and fast ADCs for pixel detectors — •Kennedy Caisley, Hans Krüger, and Jochen Dingfelder — University of Bonn, Germany

This work investigates improving analog to digital converters (ADCs) in the context of CMOS pixel detectors; a discipline with perhaps the most stringent silicon area constraints. We assembled a custom flow built on open source chip design tools, which enabled comparisons between circuit topologies and process nodes including 180, 65, and 28 nm. We then fabricated a prototype ASIC in 65 nm using this methodology, aiming for a state-of-the-art 2500 µm² area and 100 µW power budget, while sustaining a performance of 12-bit resolution at 10 Ms/s. Initial validation of this prototype and our on-going developments will be presented.

Keywords: monolithic; hybrid; readout; imaging