12-bit 62.5 MS/s

740 Digitizer Family

Photo of 12-bit 62.5 MS/s

The 740 is a high channel density CAEN Waveform Digitizer family able to perform basic waveform recording and run online advanced algorithms (DPP) of charge integration. Both the elevate number of channels per board (32 for Desktop and NIM form factor, 64 for VME) and the DPP algorithm make the board a digital replacement of a traditional QDC. Data is read by a Flash ADC, 12-bit resolution and 62.5 MS/s sampling rate, which is well suited for mid-slow signals as the ones coming from inorganic scintillators coupled to PMTs, gaseous detectors and others. Sampling rate can be further reduced using the decimation feature. The acquisition can be channel independent and externally vetoed/gated. Multiple boards can be synchronized to build up complex systems.

In case of DPP mode, data can be saved in time-stamped list mode to support higher input rates and improving the throughput performances. The acquisition in DPP mode is fully controlled by the CoMPASS software (Coming Soon), which manages the algorithm parameters, builds the plots and saves the relevant energy and time spectra. In case of waveform recording mode, the user can take advantage of the CAENScope and WaveDump software to access and save the waveforms. Libraries and demo software in C and LabView are available for integration and customization of specific acquisition systems.

740 family comes in three form factors: VME (64 input channels), NIM (32 input channels) and Desktop (32 input channels). 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).

  • 12-bit @ 62.5 MS/s
  • Analog inputs on ERNI SMC connectors
  • VME64/VME64X (64 ch.), NIM (32 ch.) and Desktop (32 ch.) modules
  • 2 or 10 Vpp input dynamic range with programmable DC offset adjustment
  • Sampling rate decimation factor (software selectable)
  • Algorithms for Digital Pulse Processing (DPP)
  • VME, USB and Optical Link communication interfaces
  • Multi-board synchronization features
  • Daisy chain capability
  • Demo software tools, Control Software for waveform recording and DPP firmware, C and LabVIEW libraries

12-bit 62.5 MS/s Models

Grid Compare
Image
Name
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
VX1740D

VX1740D

VME64X

64

62.5

30

2 / 10

12

192 k

SMC 68P

DPP-QDC, D-WAVE

NO

V1740

V1740

VME

64

62.5

30

2 / 10

12

192 k / 1.5 M

SMC 68P

D-WAVE

NO

VX1740

VX1740

VME64X

64

62.5

30

2 / 10

12

192 k / 1.5 M

SMC 68P

D-WAVE

NO

DT5740D

DT5740D

Desktop

32(SMC conn.) - 16(MCX conn)

62.5

30

2 / 10

12

192 k

SMC 68P - MCX

DPP-QDC,D-WAVE

NO

DT5740

DT5740

Desktop

32(SMC conn.) - 16(MCX conn)

62.5

30

2 / 10

12

192 k

SMC 68P - MCX

D-WAVE

NO

V1740D

V1740D

VME

64

62.5

30

2 / 10

12

192 k

SMC 68P

DPP-QDC, D-WAVE

NO

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.