GX2482 Series

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Dual Channel 180 MS/s Digitizer PXI / PXIe Card

  • 180 MS/s Digitizer
  • (2) Differential or single ended inputs
  • 16-bit Resolution
  • Input range 0.256 Vp to 15.36 Vp
  • 64 M Sample memory depth
  • PXI and PXIe configuration options


The GX2482 series are a high performance, dual differential channel, 16-bit digitizer offering high dynamic range and excellent SFDR. The module’s differential inputs, coupled with its low distortion makes it an ideal instrument for analyzing high performance or low level analog signals. Each channel offers 3 selectable low pass filters, a 16 bit, 180 MS/s ADC, and 64 M words of memory for each channel. A PLL clock generator is combined with dedicated clock dividers for each digitizer channel, providing independent clocking and flexibility for each channel. The sample rate can be programmed from 1 MHz to 180 MHz. The module is available as a PXI hybrid slot compatible (GX2482) or PXI express compatible (GX2482e) instrument.


The GX2482 provides two, differential inputs offering the ability to make low level measurements in the presence of common mode or noisy signals. The inputs can also be configured for single-ended operation. The input impedance is selectable for 1M ohm or 50 ohms and can be AC or DC coupled. Each channel can also add an offset to the input signal, providing the ability to maximize the A to D's dynamic range.

Both channels offer two, 3-pole, low pass, input filters providing the ability to band limit signal noise and minimize aliasing effects. The filters can also be bypassed to take advantage of the input amplifier's full bandwidth.

Clocking of the digitizer's two channels is provided by a PLL which uses a 10 MHz reference clock. The PLL can use the on-board, 10 MHz reference, the PXI 10 MHz clock, or an external clock input. Two independent, programmable dividers are driven by the PLL's output and provide independent sampling frequencies to the two digitizer channels. Digitizer triggering can be initiated via a PXI triggers, an external signal, a level on an input signal, or a software trigger.

Programming and Software

The board is supplied with a 32/64-bit DLL driver. Various interface files provide access to the DLL from programming tools and languages such as ATEasy, LabVIEW, LabWindows/CVI, C/C++, and more. The available virtual panel can be used to interactively adjust and control the instrument from a window that displays the instrument's current settings and measurements.
A PDF User's Guide provides documentation that includes instructions for installing, using and programming the board.


  • Aerospace
  • Defense
  • Automotive testing
  • High performance baseband testing
  • Medical device and module test
  • ATE systems