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16 channels
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Positive or negative inputs accepted on each channel
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Wide gain range: 0.15 to 480 per channel
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Programmable shaping time per channel
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Programmable pole-zero cancellation per channel
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16 normal or inverted outputs (further 10x amplification outputs also available)
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16 fast amplifier outputs for timing purposes
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Energy and timing multiplexed outputs
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Completely programmable via USB and Ethernet
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Input noise smaller than 15 µV RMS @ Gain=100
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Supported by CAEN-CSA software
The N568E is a 16 channel spectroscopy amplifier implemented in a single-width NIM module. The following versions are available:
|
Version |
N568ELC |
N568E |
N568EB |
|
Description |
16 Ch Low Cost Ethernet Prog. Spectroscopy Amplifier |
16 Ch Ethernet Prog. Spectroscopy Amplifier |
16 Ch Ethernet Prog. Spectroscopy Amplifier |
|
Shaping time |
0.2, 1, 3, 6 µs |
0.2, 1, 3, 6 µs |
0.1, 0.2, 1, 3 µs |
|
Impedance |
50 Ω |
50 Ω |
50 Ω |
|
Features |
Low cost |
Low noise |
Low noise |
For each channel the amplification gain, the output polarity, the shaping time and the pole-zero cancellation, are remotely programmable, either via USB or Ethernet; the RS485 port al lows to connect up to 32 daisy chained modules. The gain ranges from 0.15 to 480.
The working parameter values are automatically stored in a non-volatile memory. A semi-Gaussian output is provided either with the programmed gain (OUT) or with a further 10x amplification (XOUT), either direct or inverted. A Common Offset can be programmed via software and allows to shift the baseline of the output. A FOUT output provides a fast amplification for timing purposes (fixed gain factor of 20). A MUX OUT allows to monitor both the OUT and the FOUT outputs of a single channel.
The N568E is supported by freely downloadable CAEN-CSA software, available for both Windows and Linux OS.
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Technical Specifications
|
Packaging |
One unit wide NIM module |
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Inputs 0÷15 |
Positive or negative pulses with rise time >18 ns, max. amplitude: 8 V (absolute value), 50 Ω impedance |
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OUT 0÷15 |
Unipolar, ±8 V dynamic range, 100 Ω impedance |
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XOUT 0÷15 |
Unipolar, further 10x fixed amplification of the OUT value, ±8 V dynamic range, 100 Ω impedance |
|
FOUT 0÷15 |
Unipolar, 100 ns differentiation time constant, ±8 V dynamic range, 100 Ω impedance Risetime: 25 ns typically |
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MUX O |
Unipolar, ±8 V dynamic range, 100 Ω impedance |
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MUX F |
Unipolar, 100 ns differentiation time constant, ±8 V dynamic range, 100 Ω impedance Risetime: 25 ns typically |
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Gain |
Adjustable from 0.15 to 480 |
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Shaping time N568E/N568ELC |
Selectable time constant of 0.2 µs, 1 µs, 3 µs and 6 µs |
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Shaping time N568EB |
Selectable time constant of 0.1 µs, 0.2 µs, 1 µs and 3 µs |
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Pole zero |
Adjustable on 256 steps in a range from 50 µs to 500 µs |
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Integral non-linearity |
<± 0.05% in 90% of the full scale @ Gain=90 and 6 µs shaping time (± 0.2% typ. for any shaping time) |
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Equivalent input noise |
|
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Crosstalk |
< 0.02 % |
|
Count rate stability |
< 0.05 % (from 1 to 20 KHz and 3 µs shaping time) |
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