The VATA64HDR16.2 is a 64-channel charge sensitive amplifier for SiPM read-out. Each channel features preamplifiers, “slow” shapers, sample/hold, multiplexed analogue readout and calibration facilities. Each channel has a “fast” shaper that gives a trigger signal and a timing unit to record the time difference between triggers in different channels.
Supported by the Galao ROIC Development Kit.
- Meier, Dirk, et al. “An ASIC for SiPM/MPPC readout.” Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE (2010)
- Bagliesi et al., “A custom front-end ASIC for the readout and timing of 64 SiPM Photosensors”, Nuclear Physics B (Proc. Suppl.) 215 (2011) 344–348 [http://dx.doi.org/10.1016/j.nuclphysbps.2011.04.049]
- Stankova et al., “Data acquisition system for the readout of SiPM matrix with the VATA64HDR16 front-end ASIC”, Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2011 IEEE (2011)
- Stankova, Vera, et al., “Multichannel DAQ system for SiPM matrices.” Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE (2012)
|Number of inputs||64|
|Input charge range||-20 pC to 55 pC|
|Shaping time||100 ns (VA), 50 ns (TA)|
|Nominal capacitive load||200 pF|
|Equivalent Noise Charge (ENC)||7490e to 9987e|
|Trigger outputs||Common trigger output and TAC (time-to-analog converter) and global off-chip trigger line|
|Outputs||Multiplexed pulse height|
|Test and calibration||Calibration circuit and internal reference channel|
|Power dissipation||< 15 mW / channel|