Designed in a standard shortPCI-card format, the Acqiris DP1400 combines data-converter ASIC technology with a high level of component integration for a significantly reduced power consumption (less than 15W). With the optional SMAR mode, the on-board memory is separated into multiple buffers. As data is acquired in one buffer, another can be read out through the 32-bit/64MHz PCI at up to 250Mbytes/s. In applications where the total data rate of the acquisition is below the PCI-data bandwidth, the card can acquire continuously, so it won't miss zero events. The 8-bit, dual-channel DP1400 features an analogue front-end mezzanine containing both signal-conditioning and high-speed ADC components. Both inputs provide an AC- and DC-coupled digitising channel with 50Ohm input impedance. The real-time sampling rate of up to 1Gsample/s on each channel can be increased up to 2Gsamples/s real-time sampling in single-channel mode by interleaving the ADCs. The standard 256kpoints of on-board memory can be segmented for burst-mode acquisitions with only 350ns of inter-segment dead time. When more than two data-acquisition channels are required, the instruments can be synchronised using a 2GHz auto-synchronisation bus.
