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16 channels + 1 Tref channel adapter for A5203/DT5203
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LEMO connectors
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Dual threshold discriminators
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Analog/NIM/TTL input signals
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Ideal to test the timing performances of A5203/DT5203 using signals from real detectors
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Possibility to correct for walk effect
The CAEN Mod.A5256 is a 16+1 channels adapter for A5203/DT5203 board. It provides dual threshold, leading edge discriminators for analog single-ended signals on LEMO coaxial connectors. It includes ultra-fast comparators with programmable thresholds (DAC) and accepts both positive and negative analog pulses, as well as NIM/TTL logic signals. It features a dedicated connector for Channel 0 to be used as a common time reference (Tref). The dual threshold allows for a better ToT to amplitude conversion and walk correction, as well as pulse shape discrimination.
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Image
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Name
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Description
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Related Modules
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Features
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A5255 |
Quad 17x4 Header adapter |
A5203<br>DT5203 (already mounted) |
For connection with flat cables |
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A5250 |
2.54 mm pin header adapter |
A5202<br>DT5202 (already mounted) |
Mechanically adapts input edge card connector to 2.54mm header. |
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A5254 |
onsemi MPPC adapter |
A5202<br>DT5202 |
Compatible with onsemi (ex SensL) SiPM matrix ARRAYJ-60035-64P-PCB and ARRAYC-60035-64P-PCB |
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A5253 |
3-pin header adapter |
A5202<br>DT5202 |
Mates with CAEN A5261 cables |
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New A5270 |
FERS cooling fan |
A5202<br>A5203(B) |
Powered by the HV fan connector of A5202/A5203(B) units |
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A5260 |
Remotization cable for FERS-5200 boards |
A5250, A5251, A5253, A5254, A5202 |
Detectors can be moved up to one meter (A5260B) away from the readout electronics without experiencing a significant signal degradation. / 50cm, 1m |
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A5251 |
Hamamatsu MPPC header |
A5202<br>DT5202 |
Compatible with Hamamatsu SiPM matrix S13361‐3050AE‐08 |
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A5256 |
16+1 ch pos/neg Discriminator |
A5203<br>DT5203 |
Provides dual threshold, leading edge discriminators for analog single-ended signals on LEMO coaxial |
Technical Specifications
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Inputs |
Single Threshold: 16+1 inputs positive/negative polarity, 50 Ω impedance Double Threshold: 8+1 inputs positive/negative polarity, 50 Ω impedance |
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Min/Max Input Voltage |
– 4 V / +3 V |
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Min Detectable Signal |
1.5 mV |
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Threshold Range |
-1.2 V / +1.2 V |
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Threshold Step |
0.61 mV |
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Timing Resolution |
A5256 mounted on A5203: ΔTRMS = ~7 ps. Tested with a pulse generator (1 Vpp, 0.8 ns rise/fall pulses), one passive splitter and delay cables. ΔTRMS = ~20 ps. with variable amplitude pulses (30 mV to 1V) and walk correction by ToT. |
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Non-Linearity |
≤ 0.18 % typ. |
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Efficiency |
<2 mV typ. (3 mV max) Measured with 150 mV signal, with 1.6 ns rise time |
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Mechanical |
Dimension: 103.0 W x 53.0 H x 23.6 L mm3 Weight: 89 g |
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Environmental |
Environment: Indoor use Operating Temperature: 0 °C to +40 °C Storage Temperature: -10 °C to + 60 °C Operating Humidity: 10% to 90% RH non condensing Storage Humidity: 5% to 90% RH non condensing Altitude: <2000 m Pollution Degree: 2 Overvoltage Category: || EMC Environment: Commercial and light industrial IP Degree: IPX0 enclosure, not for wet location |
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Regulatory Compliance |
EMC: CE 2014/30/EU Electromagnetic compatibility Directive Safety: CE 2014/35/EU Low Voltage Directive |
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Power Requirements |
+3.3 V and +12 V taken from the A5203 edge connector |
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Power Consumptions |
5.6 W (470 mA consumption on the +12 V power of the A5203) |
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