All in one SiPM read out for multimodal PET inserts
Triroc 1A is a 64-channel front-end ASIC designed to readout silicon photomultipliers (SiPM) with both polarities for particle time-of-flight measurement applications. Triroc 1A combines a very fast and low-jitter trigger with accurate charge and time measurements. Energy and time are digitized internally with a 10-bit ADC and 30ps-bin TDC.
The concept of the ASIC is to combine two measurement lines that won’t interfere one with each other to measure both first incident photon timing measurement and whole crystal light charge integration.
An adjustment of the SiPM high voltage is possible using a channel-by-channel input DAC. It allows a fine SiPM gain and dark noise adjustment at the system level to correct for the non-uniformity of SiPMs.
The power consumption is 10 mW/channel, excluding buffers used to output the signals. The main application of Triroc 1A is PET time-of-flight but it can also be used for any application that requires both accurate time resolution and precise energy measurement. Triroc is available in BGA packaging (12x12mm, 353 balls).
- Detector Read-Out
SiPM, SiPM array
- Number of Channels
- Signal Polarity
Positive or Negative
Trigger on first photo-electron
- Timing Resolution
88 ps RMS
- Dynamic Range
3000 photo-electrons (106 SIPM gain), Integral Non Linearity: 1% up to 2000 ph-e
BGA (12x12mm, 353 balls)
- Power Consumption
Power supply: 3.3V
64 voltage inputs with DC adjustment for SiPM HV tuning
- Outputs Digital
output (energy on 10 bit, time on 10 bit – 30ps bin)
1 multiplexed time trigger output
2 ASIC trigger 0R outputs (64 channels, 2 levels)
- Internal Programmable Features
64 HV adjustment for SiPM (64x8bits), trigger threshold adjustment (10bits), charge
measurement tuning, ADC Track & Hold/Peak Sensing, 64 trigger masks, internal
temperature sensor, trigger latch, Power Pulsing
Compare with Weeroc chip.
|WWTRIROC1ABA||TRIROC 1A - All in one SiPM read out for multimodal PET inserts - BGA (Ball Grid Array)|