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T: Fachverband Teilchenphysik
T 86: DAQ, trigger and electronics IV
T 86.4: Vortrag
Donnerstag, 2. April 2020, 17:15–17:30, L-3.015
Development of a radiation hard ASIC to be used for the monitoring of the ATLAS ITk Pixel detector — •Rizwan Ahmad1, Susanne Kersten1, Christian Zeitnitz1, Peter Kind1, Ahmed Qamesh1, Michael Karagounis2, Alexander Walsemann2, and Tobias Fröse2 — 1University of Wuppertal, Wuppertal, Germany — 2University of Applied Sciences and Arts, Dortmund, Germany
For the phase II upgrade of ATLAS, a new ITK pixel detector is under development. In this context, the ATLAS pixel detector will get a new DCS (Detector Control System) which is being developed at the University of Wuppertal. The control and monitoring path of the DCS system has two main entities. The DCS computer (Main Control room) and the MoPS (Monitoring of Pixel System) chip.
The MoPS chip monitors temperature and voltages of the different sub-detector parts. The chip communicates to the DCS computer over CAN (Controller Area Network) bus. This chip has a 12-bit ADC to read up to 35 channels and it implements a part of the CANopen standard. The MoPS must be radiation hard up to an ionizing dose of > 500 Mrad and it must also provide great immunity against SEU (Single Event Upsets). This chip implements a non-standard CAN physical layer with a maximum voltage of 1.2 Volt. The first prototype of the chip implements core digital functionality and all the analog components required for the operation of the chip. In this talk functionality, simulation results and status of the chip will be presented.