Electronics for Silicon Photomultipliers

Read Out Systems

Photo of Electronics for Silicon Photomultipliers

Silicon Photomultipliers (SiPMs) are solid-state photodetectors based on densely packed matrices of Geiger-mode avalanche photodiodes (microcells) connected in parallel on a common silicon substrate. Each microcell operates above breakdown voltage and delivers a quantized current pulse when triggered by a single photon, enabling single-photon sensitivity, fast timing response and high gain comparable to traditional PMTs. The summed output current is proportional to the number of fired cells and therefore to the incident photon flux, making SiPMs ideal for applications requiring compactness, magnetic-field immunity and high photon detection efficiency.

CAEN electronics for SiPM systems are engineered to provide both ultra-stable bias distribution and low-noise, high-bandwidth signal processing tailored to the specific requirements of Geiger-mode photodetectors. These solutions integrate precision bias control (with temperature compensation and per-channel trimming), wideband front-end amplification, fast discrimination and digitization stages, ensuring optimal charge, timing and pulse-shape extraction even in high-rate environments. The portfolio supports scalable architectures ranging from single-detector laboratory setups to large multi-channel arrays used in nuclear and particle physics, medical imaging and photon-counting instrumentation, delivering deterministic performance, low jitter and full system integration flexibility.

  • Precision SiPM bias control with low noise, temperature compensation and per-channel trimming

  • High-bandwidth, low-jitter readout optimized for fast photon counting and timing measurements

  • Scalable multi-channel architectures for detector arrays and large experiments

  • Integrated front-end processing for charge, timing and pulse-shape extraction

Electronics for Silicon Photomultipliers Models

A1539

A1539

  • 12 / 24 / 32 independently controllable High Voltage channels

  • Output voltage: 0 ÷ 100 V

  • Maximum output current: 10 mA
R8031

R8031

  • 8 or 16 independent channels in a 19″ rack unit (110/220V AC Powered)

  • 100 V / 10 mA output range

  • Channels with either positive or negative polarity
A1540

A1540

  • 12 / 24 / 32 independently controllable High Voltage channels

  • Output voltage: 0 ÷ 100 V

  • Maximum output current: 1 mA
N8031

N8031

  • 8 independent channels in a 2U NIM module

  • 100 V / 10mA output range

  • Channels with either positive or negative polarity
DT5202

DT5202

  • 64-ch frontend unit for SiPM readout housing two Weeroc Citiroc-1A ASICs

  • Part of FERS-5200, the CAEN platform for the readout of large arrays of detectors (SiPM, MA-PMTs, Gas Tubes, Si detectors, …)

  • Onboard A7585D SiPM power supply
DT5702
Discontinued

DT5702

  • Readout board for SiPM, tailored for Cosmic Rays Veto systems in Neutrino experiments.

  • Based on 32-channels WeeROC CITIROC ASIC

  • Coincidence of signals from each pair of adjacent even-odd channels
SP5600E

SP5600E

  • Photon detection: light distribution and single photon detection

  • Advanced Statistics

  • State-of-art sensor to explore the quantum world
A5202

A5202

  • 64-ch frontend unit for SiPM readout applications housing two Weeroc Citiroc-1A ASICs

  • Part of FERS-5200, the CAEN platform for the readout of large arrays of detectors (SiPM, MA-PMTs, Gas Tubes, Si detectors, …)

  • Onboard A7585D SiPM power supply for sensors biasing
DT5550W

DT5550W

  • Comprehensive Programmable Board based on Weeroc ASICs

  • Available with Petiroc and Citiroc ASICs for SiPM Readout

  • Single Desktop Unit available in 32, 64, and 128-channel configurations
I-SPECTOR

I-SPECTOR

  • All-in-one detector and preamplification electronics for Gamma Spectroscopy

  • Based on a SiPM area up to  nearly 1.5 inch2

  • 20-80 V Integrated High Voltage for SiPM biasing
A7040

A7040

  • 48 independently controllable High Voltage channels

  • Output voltage: 0 ÷ 100 V

  • Maximum output current: 1 mA
A1423B

A1423B

  • Bandwidth: ~ 1.5 GHz (-3 dB)

  • Positive or negative input signals

  • Gain range: from +18 dB to +54 dB
A7585D/DU

A7585D/DU

  • Single channel PCB mount High Voltage Power Supply

    • A7585D: SMD version

    • A7585DU: Through-Hole version

    • 20÷85 V (10 mA) output range
DT5215
New

DT5215

  • Concentrator board for multiboard management in FERS-5200, the CAEN platform for the readout of large arrays of detectors (SiPM, MA-PMTs, Gas Tubes, Si detectors, …).

  • Scalability: from a single standalone FERS unit for prototyping to many thousands of channels, with simple tree network structure.

  • Modularity: multiple FERS units can be distributed on large detector volume and managed by a single Concentrator board.
A1540H

A1540H

  • 12 / 24 / 32 independently controllable High Voltage channels

  • Maximum output voltage: 100 V

  • Dual range current:

    • High Power: 1 mA (1 nA monitor resolution)
DT8031

DT8031

  • 8 independent channels in a Desktop case (110/220V AC Powered)

  • 100 V / 10 mA output range

  • Channels with either positive or negative polarity
I-SPECTOR DIGITAL

I-SPECTOR DIGITAL

  • All-in-one detector, electronics and MCA for Gamma Spectroscopy

  • Web-based interface with spectrum analysis tools

  • Based on a SiPM area up to nearly 1.5 inch2