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Descrizione
This work describes the implementation of a 64-channel ASIC developed in a commercial 65 nm CMOS technology to readout the signals collected by a camera plane made of Silicon Photo-Multipliers. The aim of the application is the identification of Extensive Air Showers by detecting optical Cherenkov light generated by Ultra-High Energy Cosmic Rays and Cosmic Neutrinos from sub-orbital and orbital altitudes. In this context, the ASIC is designed to store each event into an analog memory based on 256 configurable cells per channel. Then the chip forms a hitmap sent to an FPGA to recognize a pattern of interest. If the signal is externally validated, the digital conversion can occur on-board using an array of 12-bits Wilkinson analog-to-digital converters (ADCs) at 200 MHz of clock. The readout is realized with two serializers running at 400 MHz in double data rate (DDR). Both the number of cells and the resolution can be configured into partitions of 32, 64 or 256 cells and in the range 8-12 bits respectively, becoming a key feature of this ASIC. The chip submission and testing are planned for the forthcoming months.
| Role of Submitter | I am the presenter |
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