Marvin Test Solutions GX2482 PXI digitizer

Marvin Test Solutions GX2482 PXI digitizers sample signals over 16 bits

  • Marvin Test Solutions, provider of test solutions for military, aerospace and manufacturing applications, announces the launch of the GX2482 Series PXI/PXIe digitizers.
  • The dual differential input PXI digitizer is available in a format that is compatible with a PXI hybrid (GX2482) or PXI express (GX2482e) slot in a 3U chassis.
  • Signals are digitized at a rate of up to 180 MS/s with 16-bit resolution.

The GX2482 digitizer has two differential inputs for low-level measurements in the presence of common-mode or noisy signals. The inputs can also be configured in unipolar mode. The input impedance is selectable (1 Mohm or 50 ohms) and can be AC or DC coupled. An offset voltage can be applied to the input signal of each channel to maximize the dynamic range of the digitized signal.

Each of the two channels has two three-pole low-pass input filters to limit signal noise and minimize aliasing effects. The filters can also be bypassed to take advantage of the full bandwidth of the input amplifier.

The differential inputs of the PXI module cover a frequency range from DC to 95 – 175 MHz (typical, depending on the input range) allowing analysis of a variety of analog signals. Each channel has its own analog-to-digital converter with 16-bit resolution, three types of selectable low-pass filters, and a memory depth of 64 MSamples per channel. Signals can be sampled at an adjustable rate over a range from 1 MS/s to 180 MS/s.

The digitizer can be controlled and adjusted via a virtual front panel supplied by Marvin Test Solutions. All parameters and current measurements are displayed in an interactive window.

The GX2482 signal acquisition board is supplied with a 32-bit DLL driver. Various interface files allow access to the DLL from programming tools and languages such as ATEasy®, LabVIEW, C/C++, Microsoft Visual Basic®, Delphi, etc.
# MTS GX2482 specification overview

  • 3U board in PXI or PXIe format
  • 2 differential or unipolar inputs
  • Bandwidth : DC to 95 – 175 MHz (typical, depending on dynamics)
  • Sampling rate from 1 MS/s to 180 MS/s
  • 16-bit resolution
  • Memory depth of 64 Méch.
  • Input range 0.256 Vp to 15.36 Vp
  • Selectable 3-pole input filters: None, 30 MHz, 60 MHz
  • SFDR: 83 dB, 1 MHz input (180 MS/s, 50 Ohm, 4 Vpp diff)
  • THD: 85 dB, 1 MHz input – 81 dB, 10 MHz input (180 MS/s, 50 Ohm, 4 Vpp diff)