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SUMMARY:FastIC+\, an 8-channel front-end ASIC in 65 nm CMOS for the readou
 t of photosensors with intrinsic gain
DTSTART:20261009T090000Z
DTEND:20261009T100000Z
DTSTAMP:20261018T120400Z
UID:indico-event-1737096@indico.cern.ch
DESCRIPTION:Speakers: Rafael Ballabriga Sune (CERN)\n\n\nAchieving picosec
 ond-level timing in large-scale detector systems requires front-end electr
 onics that combine excellent time resolution with low power consumption an
 d full integration. In this seminar we present FastIC+\, an 8-channel fron
 t-end ASIC in 65 nm CMOS for the readout of photosensors with intrinsic ga
 in (SiPMs\, PMTs\, MCPs)\, which provides on-chip digitization of both arr
 ival time and energy at 12.5 mW per channel.\nWe will describe the archite
 cture of the chip\, including the current-mode input stage capable of hand
 ling both signal polarities\, the parallel time\, energy and trigger branc
 hes\, and the Time-to-Digital Converter based on a PLL generating 16 phase
 s at 1.28 GHz\, yielding a 24.4 ps time bin. We will then review the exper
 imental characterization: a single-photon time resolution of (98 ± 1) ps 
 FWHM with 3×3 mm² SiPMs\, and coincidence time resolutions of (85 ± 1) 
 ps FWHM with 2×2×3 mm³ LGSO crystals and (130 ± 1) ps FWHM with 2.8×2
 .8×20 mm³ LYSO:Ce\,Ca — to our knowledge the first sub-100 ps CTR repo
 rted with on-chip digitization. Comparisons between analog and digital rea
 dout modes demonstrate that the internal TDC contributes negligibly to the
  overall timing budget\, which remains dominated by sensor jitter.\nFinall
 y\, we will discuss how this development\, which began within the framewor
 k of CERN medical applications\, has had an impact into other domains. In 
 particular\, it led to the design of the FastRICH chip\, developed for the
  sensor readout of the LHCb RICH detector\, which will become the first RI
 CH detector with timing capability\, while the FastIC family continues to 
 find broad dissemination in other fields\, most notably in time-of-flight 
 PET instrumentation and mass spectrometry.\n\n \nCoffee will be served at
  10:30\n \n\nhttps://indico.cern.ch/event/1737096/\n\nZoom: https://cern.
 zoom.us/j/69451280131?pwd=No23Awdh8kaAzB4mkY5qBXzmf2mDGu.1
LOCATION:40/S2-A01 - Salle Anderson (CERN)
URL:https://indico.cern.ch/event/1737096/
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