PETsys TOFPET2 ASIC

The PETsys High Performance TOFPET2 ASIC is a new 64 channel chip for the readout and digitization of signals from fast photon detectors in applications where a high data rate and fast timing is required...

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TOFPET2 Front TOFPET2 Back

TOFPET2 a high-performance ASIC

for time and amplitude measurements of SiPM signals in time-of-flight applications

Figure 1

Figure 1: Detail of test board showing the TOFPET2 ASIC bonded on the board...

Figure 2

Figure 2: Pulse height spectrum obtained with a radioactive source...

Figure 3

Figure 3: Time difference between the two signals from a positron annihilation event...

Main Features

  • Designed in standard CMOS 110 nm technology.
  • Signal amplification and discrimination for each of 64 independent channels.
  • Dual branch analogue interpolation TDCs for each channel.
  • Dynamic range: 1500 pC.
  • SNR 25 dB for Qin=200 fC.
  • TDC time binning: 30 ps.
  • Gain adjustment per channel: 1, 1/2, 1/4, 1/8.
  • Configurable charge integration time up to two microseconds.
  • Fully digital output, 4 LVDS data links.
  • Max output data rate: 3.2 Gb/s.
  • Clock frequency: 200 MHz.
  • Power consumption per channel: 8.2 mW.