Development of an eight-channel time-based readout ASIC for PET applications

Zhi Deng, Allan K. Lan, Xishan Sun, Chad Bircher, Yinong Liu, Yiping Shao

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


An eight-channel readout ASIC has been developed for reading output signals from solid-state photomultipliers for positron emission tomography applications. This ASIC converts both the signal charge and occurring time to digital timing pulses so that only a time-to-digital converter is required for further signal processing. This provides the advantages of simplified circuit design, reduced power consumption, and suitability for applications that have a large number of readout channels. The ASIC uses a fully current mode preamplifier to achieve high bandwidth (> 100 MHz), high time resolution (better than ∼ 1 ns FWHM), and low power consumption (a few mW/ch). The linear dynamic range of charge measurement is adjustable and can be extended up to 10 3 pC. The chip has been fabricated with 0.35 μm 2P4M CMOS technology. A test prototype board has been developed and used for ASIC functionality and performance evaluation. Our preliminary studies show that the targets have been successfully achieved.

Original languageEnglish (US)
Article number6041045
Pages (from-to)3212-3218
Number of pages7
JournalIEEE Transactions on Nuclear Science
Issue number6 PART 2
StatePublished - Dec 2011


  • Application-specific integrated circuits
  • nuclear electronics
  • positron emission tomography

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


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