The EDIMS, an event-driven internal memory synchronized readout prototype ASIC chip developed for HFRS-TPC

分类： 核科学技术 >> 核科学与技术 提交时间： 2023-11-06

Yang, Mingyu Qian, Yi Pu, Tianlei Lu, Weijian Sun, Zhikun Zhao, Hongyun Zhang, Jiarui Liu, Zhengqiang

摘要： HFRS (HIAF FRagment separator (HFRS) will be the radioactive secondary beam separation line on High-Intensity heavy-ion Accelerator Facility (HIAF) in China. Several TPC detectors, with high count rates, are planned for particle identification and beam monitoring at HFRS. This paper presents an event-driven internal memory and synchronous readout (EDIMS) prototype ASIC chip. The aim is to provide HFRS-TPC with high-precision time and charge measurements with high count rates and a large dynamic range. The first prototype EDIMS chip integrated 16 channels and is fabricated using a 0.18-um CMOS process. Each channel consists of a charge-sensitive amplifier, fast shaper, slow shaper, peak detect-and-hold circuit, discriminator with time-walk compensation, analog memory, and FIFO. The token ring is used for clock-synchronous readout. The chip is taped and tested.

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