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Citiroc 1A
Scientific instrumentation SiPM read-out chip
Description
Citiroc 1A is a 32-channel front-end ASIC designed to readout silicon photo-multipliers (SiPM) for scientific instrumentation application.
Citiroc 1A allows triggering down to 1/3 pe and provides the charge measurement with a good noise rejection. Moreover, Citiroc 1A outputs the 32-channel triggers with a high resolution timing (better than 100 ps).
An adjustment of the SiPM high-voltage is possible using a channel-by-channel DAC connected to the ASIC inputs. That allows a fine SiPM gain and dark noise adjustment at the system level to correct for the non-uniformity of SiPMs. CITIROC 1A can be calibrated using a unique calibration signal.
Timing measurement better than 100 ps RMS jitter is measured on single photo-electron along with 1% linearity energy measurement up to 2500 p.e. The power consumption is 225mW/ASIC when all stages are ON.
Parameters
Parameters | Value |
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TRLTechnology Readiness Level | 8 - Full system using ASIC running |
Available versions |
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Detector Read-Out | SiPM |
Number of Channel | 32 |
Signal Polarity | Positive |
Sensitivity | Trigger on 1/3 photo-electron |
Timing Resolution | better than 100ps RMS on single photo-electron |
Dynamic Range | 0-400 pC i.e 2500 photo-electrons @ 106 SiPM gain |
Packaging & Dimension |
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Power Consumption | 225 mW when all stages on - supply voltage 3.3V |
Inputs | 32 voltage inputs with independant SiPM HV adjustments |
Outputs |
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Internal Programmable Features |
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Evaluation systems |
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Diagram
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DISTRIBUTION NETWORK
All weeroc products are distributed worldwide by CAEN.
Please contact your local representative or get in touch with us.
Design review
Weeroc provide free support to review your board design integrating one of our ASIC. Get in touch with our engineering team to ensure a first-time-good design of your front-end electronics.