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High channel density
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12bit resolution
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2.8 µs / 16 ch conversion time
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600 ns fast clear time
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Zero and overflow suppression for each channel
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±1.5% differential non linearity
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±0.1% integral non linearity
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32 event buffer memory
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BLT32/MBLT64/CBLT32/CBLT64 data transfer
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Multicast commands
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Live insertion
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Libraries, Demos (C and LabView) and Software tools for Windows and Linux
The CAEN Mod.V792N is a 1-unit wide VME 6U module housing 16 Charge-to-Digital Conversion channels with current integrating negative inputs (50 Ω impedance).
For each channel, the input charge is converted to a voltage level by a QAC (Charge to Amplitude Conversion) section. Input range is 0 ÷ 400 pC.
The Model V792N features LEMO 00 connectors for both input and control signals. The outputs of the QAC sections are multiplexed and subsequently converted by two fast 12-bit ADCs. The integral non linearity is ±0.1% of Full Scale Range (FSR) measured from 5% to 95% of FSR. The ADCs use a sliding scale technique to improve the differential non-linearity.
The Mod. V792N offers a 32 event buffer memory, A24/A32 addressing mode, D16, D32, BLT32/MBLT64 and CBLT32/CBLT64 data transfer mode. Multicast commands are also supported.
The board supports the live insertion that allows inserting or removing them into the crate without switching it off.
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Compare
|
Image
|
Name
|
Package
|
No. of Channels
|
Resolution (bits)
|
Conversion Time (µs)
|
LSB (fC)
|
Full Scale Range (pC)
|
Gate Width (µs)
|
Fast Clear (µs)
|
Connectors
|
Features
|
|
|
V862 |
VME |
32 |
12 |
5.7 |
100 |
400 |
0.05(1) |
0.6 |
Robinson Nugent Flat |
individual gate |
|
|
V792N |
VME |
16 |
12 |
2.8 |
100 |
400 |
0.05(1) |
0.6 |
LEMO |
- |
|
|
V965 |
VME |
16 |
12 (15 dyn.) |
5.7 |
25 / 200 |
100 / 900 |
0.05(1) |
0.6 |
LEMO |
dual range |
|
|
V965A |
VME |
8 |
12 (15 dyn.) |
2.8 |
25 / 200 |
100 / 900 |
0.05(1) |
0.6 |
LEMO |
dual range |
|
|
V792 |
VME |
32 |
12 |
5.7 |
100 |
400 |
0.05(1) |
0.6 |
Std. Flat |
- |
Technical Specifications
|
Packaging |
1-unit wide 6U VME module (version NA requires the V430 backplane) |
|
Inputs |
16 channels, 50 Ω impedance, negative polarity, DC coupling |
|
Input range |
0 ÷ 400 pC (if Sliding Scale is used FSR is reduced from 4095 to 3840 counts) |
|
Resolution |
12 bit |
|
Gain |
100 fC/count |
|
Max. tolerated positive voltage input |
15 mV |
|
Reflections |
< 5% with 2 ns fall time input signals |
|
Input offset |
±2 mV |
|
RMS Noise |
0.5 counts typical |
|
Integral non linearity |
0.1% of FSR (=3840 counts) |
|
Interchannel gain uniformity |
±4% |
|
Interchannel Isolation |
> 60 dB |
|
Power rejection |
|
|
Fast clear time |
600 ns |
|
Gate timing |
the Gate signal must precede the analog input by > 15 ns |
|
Conversion time |
2.8 µs for all channels |
|
Zero suppression |
Threshold values programmable in:
|
|
Control inputs |
NIM input signals:
|
|
Control outputs |
NIM output signals:
|
|
VME interface |
A24/A32 |
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