NI PXI-2594 2.5 GHz 50 Ω 4x1 Mux (Insertion Loss <1.35 dB)

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  • 50 Ω characteristic impedance
  • 2.5 GHz bandwidth
  • Insertion loss at 2.5 GHz <1.35 dB
  • VSWR at 2.5 GHz <1.45
  • Onboard relay counting
  • SMA direct connectivity
  • Configure Complete PXI System
  • Data Sheet
  • View Support Resources
The National Instruments PXI-2594 is a 4x1 high-frequency unterminated multiplexing switch capable of switching signals from DC to 2.5 GHz. The characteristic impedance of the channels on this module is 50 Ω. The NI PXI-2594 has a maximum voltage rating of 30 Vrms with a maximum switching current of 500 mA. It is well-suited for applications that require the routing of high-frequency signals inside automated test equipment (ATE) systems because it can switch signals with very low insertion loss. In addition, the excellent voltage standing-wave ratio (VSWR) and isolation parameters make this module the perfect choice in any system geared toward high-frequency applications. The PXI-2594 also offers relay count tracking to help reduce unexpected system downtime.

Note: The bandwidth specification of a switch module is not an absolute specification and is determined by vendor standards. Although higher frequency signals can be routed through this switch module, they will encounter more degradation than those at lower frequencies. In order to determine the best switch module for your application review the insertion loss, VSWR, and isolation specifications of the product for the bandwidth of your application. For more information on choosing the right RF switch for your application, review the ‘Guide to Selecting and RF Switch’ linked in the 'Resources' section of this page.

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Specifications Documents

  • Data Sheet

Specifications Summary


NI PXI-2594 Packages

To use the NI PXI-2594 , you need all items in the diagram below. Select Option 1 if you already own a PXI System, or Option 2 if you do not already own a chassis, controller, or software.

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PXI System

NI PXI-2594




NI PXI-2594 - 778572-94 Qty $ 1,124 each
Optional Accessories
SMA-100 (38.1cm) - 763444-01
Qty $ 90 each
SMA-100 (12.7cm) - 763443-01
Qty $ 78 each
SMA Plug (Female) to SMB Jack (Male) Adapter - 779674-01
Qty $ 67 each
Qty $ 171 each
Qty $ 1,299 each

Subtotal: $ 1,124

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Additional Product Information

  • Data Sheet