  The CAEN V1751 is a new generation of Waveform Digitizer recently introduced
by CAEN SpA. It features 8 Channels per board, 10 bit, 1 GS/s using Flash ADCs
Waveform Digitizers (or 4 channels at 2 GS/s in Dual Edge Sampling mode) with
threshold and Auto-Trigger capabilities. This provides a good basis for data
acquisition in Dark Matter searches using PMTs to detect scintillation light in
liquid argon, as it matches the requirements for measuring the fast
scintillation component. The board was tested by operating it in real
experimental conditions and by comparing it with a state of the art digital
oscilloscope. We find that the sampling at 1 or 2 GS/s is appropriate for the
reconstruction of the fast component of the scintillation light in argon
(characteristic time of about 6-7 ns) and the extended dynamic range, after a
small customization, allows for the detection of signals in the range of energy
needed. The bandwidth is found to be adequate and the intrinsic noise is very
low.
