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10 bit 4 GS/s ADC
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2 inputs channels, single-ended
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1 Vpp input range
10-bit 4 GS/s
761 Digitizer Family
The 761 is the family of CAEN Waveform Digitizer with the highest sampling rate Flash ADC (10 bit @ 4GS/s). It can record fast signals from fast organic, inorganic and liquid scintillators coupled to PMTs or Silicon Photomultipliers, Diamond detectors and others, and save them with high efficiency and precision for advanced timing analysis. The acquisition can be externally vetoed/gated. Multiple boards can be synchronized to build up complex systems.
The data stream is written in a circular memory buffer with independent read/write access, which reduces the dead-time of the acquisition process. The acquisition is fully controlled by the WaveDump software, which manages the settings, plots and saves the waveforms. Libraries and demo software in C and LabView are available for integration and customization of specifc acquisition systems.
761 family comes in three form factors: VME (2 input channels), NIM (1 input channel) and Desktop (1 input channel). The communication to and from the board is provided through the following interfaces: USB (Desktop and NIM form factors), VMEbus (VME form factor), and Optical Link (all form factors).
Features
- 10-bit @ 4 GS/s
- Analog inputs on MCX coax. connectors
- VME64/VME64X (2 ch.), NIM (1 ch.) and Desktop (1 ch.) modules
- 1 Vpp input dynamic range with programmable DC offset adjustment
- VME, USB and Optical Link communication interfaces
- Multi-board synchronization features
- Daisy chain capability
- Demo software tools, C and LabVIEW libraries
10-bit 4 GS/s Models
Grid
Compare
V1761
DT5761
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10 bit 4 GS/s ADC
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1 input channel, single-ended
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1 Vpp input range
VX1761
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10 bit 4 GS/s ADC
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2 inputs channels, single-ended)
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1 Vpp input range
Image |
Name
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Package | No. of Channels | Max Sampling Rate (MS/s) | Bandwidth (MHz) | Full Scale Range (V) | Resolution (bits) | Board Memory (Samples/ch) | Analog Input Connectors | CAEN firmware | Open FPGA | |
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V1761 |
VME | 2 | 4000 | 1000 | 1 | 10 | 7.2 M / 57.6 M | MCX | D-WAVE | NO | |
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DT5761 |
Desktop | 1 | 4000 | 1000 | 1 | 10 | 7.2 M | MCX | D-WAVE | NO | |
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VX1761 |
VME64X | 2 | 4000 | 1000 | 1 | 10 | 7.2 M / 57.6 M | MCX | D-SCOPE | NO |
WaveDump
Open Source Acquisition Software for Developers
WaveDump is a basic console application supporting digitizers running Waveform Recording firmware. WaveDump 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. It is then possible to read the data, display the readout and trigger rate. Moreover, it is also possible to apply some post-processing (e.g. FFT and amplitude histogram), save data into a file and also plot the waveforms using Gnuplot third-party graphical utility.
WaveDump is a very helpful example of C code demonstrating the use of libraries and methods for an efficient readout and data analysis. Expert users can start with this demo to write their own acquisition software to exploit the full potentialities of the digitizers. Source files and the VS project are available for free download.
Available Firmware:
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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 V3718 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. A4818/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.
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