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Low test cost eight-channel digitiser

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THE new NI PXI-5105 eight-channel digitiser from National Intsruments is the lowest price-per-channel high-speed data acquisition product in its class, which offers a cost-effective alternative to systems that use multiplexed A/D converters or switches to increase channel count.

The PXI-5105 60 MS/s, 12-bit digitiser can be used to increase the number of analogue input channels in systems while lowering test costs.

The new module extends the National Instruments family of high-density, simultaneous-sampling data acquisition products to more than 20 devices ranging from 12 to 24 bits, up to 60MS/s, up to 512MB onboard memory and up to eight channels on a single 3U PXI or PCI device.

Engineers can configure the PXI-5105 digitiser through software to perform typical oscilloscope measurements as well as custom measurements in many applications.

In particular, the PXI-5105 digitiser is suitable for building high-channel-count systems in application areas such as ultrasonic non-destructive test (especially linear- and phased-array applications that require phase coherence), medical imaging including ultrasound and magnetic resonance imaging (MRI), seismic imaging and general ATE applications.

To expand channel count beyond eight channels, the PXI-5105 builds on the PXI platform to deliver picosecond-level synchronisation accuracy among modules.

With this capability, engineers can build phase-coherent systems of up to 136 channels in a single 4U height, 19-inch rack-mountable PXI chassis, which they can expand to more than 5000 channels using multiple PXI chassis.

Engineers can integrate the PXI-5105 digitiser with a variety of NI hardware including digitisers, signal generators, high-speed digital I/O and multifunction data acquisition devices to create a custom measurement system.

The module also works with all National Instruments software including NI LabVIEW as well as other common development environments such as C, C++ and Microsoft Visual Basic.

Engineers working on ultrasonic non-destructive test applications can accelerate their application development with the LabVIEW Ultrasonic Starter Kit, which is available as a free download at ni.com/digitizers/highdensity.

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