Test-and-Measurement Functions Supported
With two new product families of no less than 28 different PXI-based data acquisition and signal generation boards, Exacq Technologies (Indianapolis, Ind.---a member of the PXI Systems Alliance) is really extending its existing line of PXI data-acq products in a big way. In the near future, we'll review some of these products in more detail here at eeProductCenter.
Today's news of the company's latest wares comprise the XH Series High Speed Data Acquisition board line, and an XM Series Multifunction Analog I/O line.
All are DSP-based products. Running a local 143-MHz 32-bit DSP, packing 16-Mbytes of memory, and operating as PCI bus masters, the company's new boards provide glitch-free capture and/or playback of analog signals of a length limited only by host RAM size---even under Windows operating systems.
The XH Dozen
Let's briefly look at Exacq's XH Series first. The series consists of a dozen products. Dual analog-input channels provide simultaneous 20-Msample/s per channel operation, or up to 25-Msamples/s for single input conversion. These products have 12-bit-resolution A/D converters. Using them, you can see a 1-Hz sample-clock resolution.
On the output side, dual analog channels offer simultaneous 20-Msample/s per output, or 40-Msample/s on a single output. These boards provide ARB (arbitrary waveform)/function generation, as well as analog re-construction filtering. They, too, pack 16-Mbytes of local waveform memory.
Boards equipped with digital I/O provide 16 digital I/Os that can operate synchronously with the analog I/O. Optional RF multiplexer modules are also available that can give you up to 25 MUXd inputs, too.
The XM Multifunction Series
Next up is Exacq's new XM Series of analog I/O boards. This series consist of 16 products. XM Series multi-function boards give you up to 32 single-ended or 16 differential-mode inputs, sampled at up to 1-MHz with 16-bit A/D resolution.
Like the XH boards, they also pack 16-Mbytes of local acquisition memory, and offer up to 32 digital I/Os that can sync with analog I/O.
The XH products also give you two waveform-quality output channels, backed by up to 16 Mbytes of local waveform memory. They include a number of triggering modes, and three counter/timers. Lastly, the products come in both standard- and high-gain versions.
Included with Exacq's PXI products is a complement of freebie software that includes applications, tools, drivers, and sample source-code.
There's even test-and-measurement-oriented code. The Exacq Bench application, for example, lets you run the hardware as an oscilloscope, a spectrum analyzer, a waveform generator, or a DC voltage generator. It also lets you operate the boards as logic analyzers, multimeters, or even stripchart recorders. Nice.
Roll Your Own
For those codesmiths amongst you, Exacq also offers its Exacq SDK software developer's kit. The SDK includes a large library of source code for high-level languages such as C++, VisualBASIC, and ActiveX.
DSP tools in Exacq SDK include those for implementing FFTs (fast Fourier transforms) and digital filters.
Another interesting software tool is ExacqXL. This application supports direct capture of data into Microsoft Excel.
Another tool, called Exacq Control Center, is a configuration utility for the hardware. Numerous free third-party drivers are also provided, including drivers for LabVIEW, MATLAB, and TestPoint.
Finally, all of these PXI-based boards take advantage of the PXI architecture's support for multi-board synchronization through triggering as either star trigger controllers, or with peripheral and bused sample clocks.
Pricing and Availability
Exacq says that its entire line of XH Series and XM Series PXI-based products are now available. Pricing for the XM Series ranges from about $800 to about $1300. Pricing for the XH Series ranges from about $1400 to about $2000.
For more details, contact Exacq Technologies, Inc.,
7202 E 87th St., Suite 115, Indianapolis, Indiana 46256-1200. Phone: (317) 845-5710. Fax: (317) 845-5720.