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N957

8k Multi-Channel Analyzer
The Mod. N957 is a 8k Multi-Channel (MCA) with USB port, housed in a 1-unit wide standard NIM module. The multichannel analyzer performs the essential function of collecting the data and producing output, in the form of converted value of input peaks. The input pulses can be those produced by a standard spectroscopy amplifier. They can be Gaussian, semi-Gaussian or square waves, unipolar (positive) or bipolar, in a range from 0 to 10 V, with a rise time greater than 0.1 µs. The trigger can be made "on signal" (Auto Gate mode) or "external" (External Gate mode). In the first case a discriminator, with a settable threshold, enables the conversion. In the second case, an external gate is fed to the module, via front panel GATE In connector.The input channel has one peak amplitude stretcher, the output of which is digitised by a 13 bit fast (0.8 ms) ADC featuring a sliding scale technique, to improve the differential non-linearity.Converted waveforms are stored into a 64 KSamples buffer memory. The unit hosts an USB2.0 port (also compatible with USB 1.1), which permits a simple control and data-acquisition via PC.
Libraries for Windows and Linux will be provided as well. Future firmware upgrade is possible via USB.
Packaging One unit NIM mechanics
No. of ADC channels 1
Resolution 13 bit (8192 channels - 8064 valid if sliding scale enabled)
ADC Conversion time 0.8 µs
Dead Time 4.8 µs
LSB 1.22 mV
Gate Signal must occur prior to and must extend for at least 0.2-μs after the peak (in External Gate mode)
Differential Non-Linearity < 1%
from 5% to 95% of input FSR (500 mV ÷ 9.5 V)
Integral Non-Linearity < 0.065%
from 5% to 95% of input FSR (500 mV ÷ 9.5 V)
Gain Instability <+150 ppm/°C
USB port Compatible with USB 1.1 and USB 2.0;
3m maximum cable length (longer distance can be achieved with commercial off-the-shelf products)
Maximum transfer rate 30 Mbyte/s (USB 2.0 Bulk Transaction Protocol);
75 Kbytes/s (USB1.1)
I/O signals NIM/TTL; selected via internal switch
Discriminator Threshold Software programmable, 0 mV ÷ 500 mV range, 100 steps
Description Release Date OS-Version Environment Download
Driver
Linux DT57xx-N67xx-DT55xx-V1718-N957 Linux USB Driver 1.5.1 August, 2015
Release Notes 4.14 KB - Type: .txt Download
Drivers (Linux kernel 2.6 - 3.x - 4.4) 8.24 KB - Type: .tgz Download
Windows N957 USB driver 3.4.7 May, 2012 7/8/8.1/10 (32-bit)
Drivers 42.99 KB - Type: .zip Download
Windows N957 USB driver 3.4.7 May, 2012 7/8/8.1/10 (64-bit)
Drivers 62.45 KB - Type: .zip Download
 
Firmware
Firmware   N957 Firmware 0.8 Jun, 2007
Release Notes 862.0 Bytes - Type: .txt Download
FW Package 31.63 KB - Type: .zip Download
 
Control Software
Windows N957 Tool 2.05 May, 2017 C
Readme 1.31 KB - Type: .txt Download
Release Notes 3.8 KB - Type: .txt Download
SW Package 12.6 MB - Type: .zip Download
Linux N957 Tool (Linux) 2.11 May, 2017 C
SW Package 129.42 KB - Type: .tgz Download
Release Notes 4.04 KB - Type: .txt Download

Code Description
WN957XAAAAAA N957 - 8k Multi-Channel Analyzer
Compare with other  ADCs (Peak Sensing)
Model Package Function Description Compare
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DT5781 Digital Multichannel Analyzers Multi Channel Analyzers Dual/Quad Digital Multi Channel Analyzer - Desktop
Gamma stream Digital Multichannel Analyzers Multi Channel Analyzers Digital MCA Tube Base for Gamma-Ray Spectroscopy
Hexagon Digital Multichannel Analyzers Multi Channel Analyzers Dual Independent 32k Digital MCA with HV & Preamplifier Power Supply
N1728A NIM Multi Channel Analyzers 4 Ch. 14 bit 100 MS/s Digitizer with Pulse Shape Analysis (Differential Inputs)
N1728B NIM Multi Channel Analyzers 4 Ch. 14 bit 100 MS/s Digitizer with Pulse Shape Analysis (Single Ended Inputs)
N6780 Digital Multichannel Analyzers Multi Channel Analyzers Dual Digital Multi Channel Analyzer (HV & Preamplifier PS) - NIM
N6781 Digital Multichannel Analyzers Multi Channel Analyzers Dual/Quad Digital Multi Channel Analyzer - NIM
N957 NIM Multi Channel Analyzers 8k Multi-Channel Analyzer

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