Multichannel Analog Front-End for SiPM
A5550AFE-S
The DT5550AFES is an analog frontend board designed for SiPM readout.
It is a multichannel preamplifier & shaper to be used in conjunction with one or two DT5550, to digitize the shaped signal. This system allows to read out up to 64 independent channels, making the solution ideal to perform imaging and high-resolution spectroscopy with SiPM matrices and arrays.
Opposed to widely available ASIC-based solutions, the DT5550AFES is based on discrete preamplification stages, so that it allows the direct sampling of the analog signal generated by the SiPM. Moreover, the large input dynamic range allows to use the board for particles calorimetry applications.
The analog frontend consists in independent transimpedance shaper amplifier (TIA), followed by a single-ended to fully-differential amplifier. Differential signals guarantee a better immunity to noise and crosstalk between channels, and can be carried several meters away for digitization process, without any degradation.
A power supply module (CAEN A7585D) for SiPM biasing is mounted onboard, providing a common voltage in the range 20-85 V, with the possibility of individual channel adjustment. SiPM temperature is monitored using a digital temperature sensor. Thanks to this feature, a temperature feedback on the bias voltage is implemented.
The DT5550AFES, in conjunction with two CAEN DT5550 open-FPGA boards, realizes a complete 64-channels readout system for SiPMs, with programmable signal processing capabilities. The system can be used for waveform digitization, imaging and spectroscopy purposes. The kit comes with SCI-Compiler, the CAEN user firmware generator and compiler for easy FPGA programming, and a ready-to-use demo software for waveform recording and spectra acquisition.
Developed in collaboration with 
Features
- Multichannel Analog Frontend Board for SiPM biasing, signal preamplification and shaping
- 20-85 V SiPM biasing
- 400 ns shaping
- Great input dynamic range (up to 6000 photoelectrons)
- 64-channel Readout System kit available:
- DT5550AFES Analog Frontend
- 2 x DT5550 Readout System
- Extension micro-coaxial cable with input connector for SiPM with simple pinout
- SCI-Compiler license
- Complete system for waveform digitization, imaging and spectroscopy
- SiPM input and bias lines on a single connector with simple pinout to adapt to readout any kind of SiPM
- Ideal for high-resolution spectroscopy and calorimetry
- Radiation Tolerant system
- Demo software provided for free with the 64-ch Readout System kit
- Optional ready-to-use detector kit:
- PCB equipped with 64-ch Hamamatsu SiPM matrix S13615-1050, directly compatible with DT5550AFES input connector
- Dark box for SiPM board testing
DT5550AFES: Data Sheets
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