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main 725-730
NEW

725-730 Digitizer Families

8/16 Channel 14-bit 250-500 MS/s Digitizer

Features
  • Resolution: 14-bit
  • Sampling rate;
    - 500 MS/s (730 family)
    - 250 MS/s (725 family ) NEW!
  • Analog input on MCX coax. connectors
  • VME64/VME64X (16/8 ch.), NIM (8 ch.) and Desktop (8 ch.) modules
  • 0.5 or 2 Vpp input dynamic range with programmable DC offset adj.
  • Algorithms for Digital Pulse Processing
  • VME64/VME64X, USB and Optical Link communication interfaces
  • Multi-board synchronization features
  • 16 programmable LVDS I/Os
  • Daisy chain capability
  • Demo software tools, DPP Control Software, C and LabVIEW libraries
Applications
  • Nuclear and Particle Physics
  • Dark Matter and Astroparticle Physics
  • Fast Neutron Spectroscopy
  • Fusion Plasma Diagnostic
  • Environmental Monitoring
  • Homeland Security
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Overview
725 and 730 are 2 families of Flash ADC Waveform Digitizers:

Family
pnt 730:
pnt 725:
Resolution
14-bit
14-bit
Sampling Rate
500 MS/s
250 MS/s


NEW!

They are available in three form factors: VME (16 input channels), NIM (8 input channels) and Desktop (8 input channels).

The acquisition capabilities of x725-x730 take advantage of the multi-buffer organization of the memories. The data stream is continuously written in a circular memory buffer. When the trigger occurs, the digitizer writes further samples for the post trigger and freezes the buffer that can be read by one of the provided readout links. The acquisition can continue without any dead time in a new buffer.

Two memory sizes are available:

pnt 640 kS/ch
pnt 5.12 MS/ch

730 and 725 families supports multi-board synchronization, so all ADCs can be synchronized to a common clock source and ensuring Trigger Time Tag alignment. Once synchronized, all data will be aligned and coherent across multiple digitizer boards.

A common acquisition trigger signal can be provided externally via the front panel Trigger Input connector or via software. The board can also self-trigger the acquisition thanks to a trigger threshold adjustable for each channel. The trigger from one board can be propagated to the other boards through the front panel Trigger Output connector
Model compare 725-730
Model Compare
Model
No. Of
Channels
Resolution
(bits)
Max Sampling Rate (MS/s)
Bandwidth
(MHz)
Board Memory Samples/ch
Package
8
14
250
125
640 k - 5.12 M
Desktop
8
14
500
250
640 k - 5.12 M
Desktop
8
14
250
125
640 k - 5.12 M
NIM
8
14
500
250
640 k - 5.12 M
NIM
8 / 16
14
250
125
640 k - 5.12 M
VME
8 / 16
14
500
250
640 k - 5.12 M
VME
8 / 16
14
250
125
640 k - 5.12 M
VME64X
8 / 16
14
500
250
640 k - 5.12 M
VME64X
Digital Pulse Processing Firmware & Software
DPP-PHA - 725-730
DPP-PHA - Digital Pulse Processing for the Pulse Height Analysis
725, 730 and 724 digitizers running DPP-PHA firmware become multichannel data acquisition systems for nuclear physics or other applications requiring radiation detection. The digitizers accept signals directly from Charge Sensitive Preamplifiers or photomultiplier and implement a digital replacement of Shaping Amplifier and Peak Sensing ADC (Multi-Channel Analyzer).

The digitizer runs on real time:
pnt Self Trigger using CR-RC-CR digital algorithm
pnt Trapezoidal filter for Pulse Height Analysis and Energy spectra
pnt Digital Constant Fraction Discriminator for event time measurement

Some typical applications:
pnt Gamma ray spectroscopy with Germanium and Silicon Detectors
pnt Readout of PMTs with slow scintillators (for instance NaI)
pnt Applications that require a moderate timing resolution to make coincidences
Software available:
MC2A
MC2 Analyzer
Software with basic analysis tools and complete acquisition / control capabilities for CAEN Digital MCAs and Digitizers running Pulse Height Analysis. It allows the user to set the relevant DPP-PHA parameters, to collect the spectra and perform mathematical analysis, like energy calibration, peak search, background subtraction, peak fitting, etc.
CoMPASS
CoMPASS
CAEN Multi-PArameter Spectroscopy Software (CoMPASS) is the new software from CAEN able to implement a Multi-parametric DAQ for Physics Applications, where the detectors can be connected directly to the digitizers inputs and the software acquires energy, timing, and PSD spectra.
DPP-PSD
DPP-PSD - Digital Pulse Processing for the Pulse Shape Discrimination
The 720, 725, 730 and 751 series digitizers running DPP-PSD firmware become multichannel data acquisition systems for nuclear physics or other applications requiring radiation detection. The digitizers accept signals directly from the detector and implement a digital replacement of Dual Gate QDC, Discriminator and Gate Generator.

The digitizer runs on real time:
pnt Self Trigger using CR-RC-CR digital algorithm
pnt Input signal baseline (pedestal) calculation
pnt Dual gate generation with programmable parameters
pnt Double integration of the prompt and delayed charge for Pulse Shape Discrimination
pnt Pedestal subtraction for energy calculation

Some typical applications:
pnt Readout of PMTs coupled to organic liquid scintillators (e.g. BC501-A)
pnt Applications that require a moderate timing resolution to perform coincidences
pnt Gamma-Neutron discrimination (dual gate integration)

Software available:
psd
CoMPASS
CAEN Multi-PArameter Spectroscopy Software (CoMPASS) is the new software from CAEN able to implement a Multi-parametric DAQ for Physics Applications, where the detectors can be connected directly to the digitizers inputs and the software acquires energy, timing, and PSD spectra.
It features a User-friendly GUI when different CAEN digitizer models with DPP firmwares are detected. The software harmonizes the data in a unique format both for synchronous and asynchronous acquisitions of disomogeneus CAEN boards. The resulting data can be plotted and saved thanks to the CERN Root interface.
DPP-ZLE - 725-730
DPP-ZLE - Digital Pulse Processing for the Zero Length Encoding
The Zero Length Encoding (DPP-ZLEplus) Firmware allows the user to transfer the digitized waveforms in compressed mode, performing an enhanced Zero Suppression algorithm on the input signals.

DPP-ZLE continuously calculates the baseline of the input signals and, whenever an external trigger occurs, it searches for the significant input pulses within an user-defined Acquisition window. An input pulse is considered significant if it either exceeds an Upper Threshold or falls below a Lower Threshold referred either to the calculated baseline or absolute values.

The digitizer runs on real time:
pnt Input signal baseline calculation channel by channel
pnt Acquisition window generation whenever an external trigger occurs
pnt Enhanced Zero Suppression of input signals within the Acquisition window
pnt Storage of just the pulses that cross user defined Upper or Lower Thresholds
pnt Programmable Look Back and Look Ahead windows
pnt Provides also timing information (trigger time stamps)

Some typical applications:
pnt Read out of a large number of detectors following a global trigger
pnt Application requiring an effective data reduction
CAENScope
CAENScope
Digitizer Software for Signal Inspection and Waveform Recording
In a brand new framework, CAENScope software implements the features of an easy-to-use Signal Inspection Software to be used with CAEN digitizers running the "Default Firmware".

CAENScope user friendly interface presents different sections to easily manage the digitizer configuration and plot the waveforms. Once connected, the program retrieves the digitizer information.

Different parameters can be set for the channels, the trigger and the trace visualization (up to 12 traces can be simultaneously plotted). Signals are recordable to files in two different formats: Binary (SQLite db) and Text (XML). It is also possible to save and restore the program settings.

CAEN WaveDump
CAEN WaveDump
CAEN Digitizer readout application
WaveDump is a basic console application, with no graphics, supporting digitizers running the Waveform Recording Firmware. It allows the user to program a single board (according to a text configuration file containing a list of parameters and instructions), to start/stop the acquisition, read the data, display the readout and trigger rate, apply some postprocessing (e.g. FFT and amplitude histogram), save data to a file and also plot the waveforms using Gnuplot.

Starting with this demo is strongly recommended to all those users willing to write the software on their own. Source files and the VS project are included for developers.
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Interfaces & I/O
USB
An USB 2.0 link is provided in NIM and Desktop form factors for an easy data readout
VME Digitizer can be controlled via USB using the CAEN V1718 VME-USB2.0 Bridge

Optical Link
An Optical link is provided in any form factor for high performance data readout through CAEN proprietary daisy-chainable CONET communication protocol.
it is possible to connect up to 8/32 ADC modules to a single Optical Link Controller (Mod. A2818/A3818)

Digital I/O
Digital I/Os are provided in VME boards that can be used for individual trigger propagation to external trigger logic. This feature makes VME form factor ideal to scale up the acquisition channels where a global trigger generation is mandatory.