Measurement Computing Corporation (formerly ComputerBoards) has
introduced a four-channel, 12-bit resolution analogue input board that
can sample reliably at rates up to 20MHz. Priced around £1,100, the
PCI-DAS4020/12 is available in the UK from Adept Scientific. The package
includes InstaCal software for installation, calibration and test,
guiding the user through the set-up procedure and automatically creating
the board configuration file.
The board has four A/D converters, enabling all four inputs to be sampled
simultaneously and avoiding the channel-to-channel skew associated with
multiplexed A/D. Data can be written at full speed into a large
128ksample memory or, using PCI bus mastering, continuous samples can be
taken on two channels simultaneously at 20MHz (four channels at 10MHz).