Multi-Purpose Mixed-Signal SiPM read-out ASIC
Temporoc 2 is a 64-channel front-end ASIC designed to readout silicon photomultipliers (SiPMs) for particle time-of-flight measurement applications. Temporoc 2 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 50ps-bin TDC. In total, Temporoc 2 is capable of providing two distinct time tagging and two energy measurement of each event.
The concept of this ASIC is combining 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. Additionally, Temporoc 2 features clustering triggers readout which could be useful for particle detection with monolithic scintillator.
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. Temporoc 2 is suitable for any application that requires both accurate time resolution and precise energy measurement such as time-of-flight gamma detection.
| TRL Technology Readiness Level | 4 - ASIC validated in lab environment |
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| Available versions |
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| Detector Read-Out | SiPM, SiPM array |
| Number of Channel | 64 |
| Signal Polarity | Positive |
| Sensitivity | Trigger on 1/3 photo-electron |
| Timing Resolution |
Better than 20 ps RMS on single photo-electron |
| Dynamic Range | up to 3000 photo-electron @ 106 SiPM gain |
| Packaging & Dimension |
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| Power Consumption |
640 mW - supply voltage 1.2V |
| Inputs | 64 analogue inputs with independant SiPM HV adjustments |
| Outputs |
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| Internal Programmable Features |
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| Evaluation systems |
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