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The DAS-800 Series of boards is 100% register and connector compatible with the DAS-8 analog input boards, so all software and accessories are fully compatible with these new, high performance cards. Significant improvements over the DAS-8 include faster input rates, better accuracy, more flexible triggering and more accurate timing.
The DAS-800 Series includes three boards, the DAS-800, DAS-801 and DAS-802. The DAS-800 provides 8 single-ended analog inputs with a fixed input range of ▒5 Vdc. The DAS-801 and DAS-802 provide 8 analog inputs that can be individually switch selected for single-ended or differential operation. The DAS-801 provides software programmable ranges for low level inputs, while the DAS-802 is designed for higher level inputs.
The inclusion of a 4-location FIFO and on-board timebase insure jitter-free A/D readings at rates to 40 kHz. For compatibility with the DAS-8 Series, conversion can be initiated by software or the PC clock. An external trigger input can be programmed either to inhibit A/D conversions until it is triggered, or as a gate that enables conversions only when it is true. A FIFO overflow signal is provided.
Three 16-bit programmable counter-timers are provided. One or two of these can be combined with the 1 MHz on-board clock for sample periods between 25 ╡seconds and 1.2 hours. The remaining counters are available for event counting, pulse generation, frequency or pulse width measurements. The DAS-800 boards include 3 digital inputs and 4 digital outputs. If an EXP-16 or EXP-GP multiplexer and signal conditioning accessory is used, the digital output lines control the multiplexers on the accessories.
All user connections are made using a 37-pin sub-D connector at the rear of the PC. The DAS-800 Series is compatible with a wide variety of screw terminal, channel expansion and signal conditioning accessories.
Driver Software
DriverLINX software is also included, at no additional charge, with every
DAS-1200 series board. Supporting your programming requirements in Windows
3.x/95 environments, DriverLINX provides application developers a standardized
interface to over 100 services for creating foreground and background tasks to
perform analog input and output, digital input and output, time and frequency
measurement, event counting, pulse output and period measurement. In addition
to basic I/O support, DriverLINX also provides sophisticated built-in
capabilities to handle memory and data buffer management, a rich selection of
starting and stopping trigger events including pre-, mid-point, and post
triggering protocols, extensive error checking and reporting capabilities, and
a context-sensitive on-line help system. There are two versions included:
DriverLINX and DriverLINX/VB. DriverLINX provides the C/C++interfaces.
DriverLINX/VB provides custom control interfaces (VBX and ActiveX) that can be
accessed from the palette of built-in tools included in Microsoft's Visual
Basic and Visual C environments.
Software is supplied on CD-Rom.
View an Adobe Acrobat pdf file for more
product info (requires Acrobat Reader).
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