NI PXI-5695 is an 8 GHz single-slot PXI RF attenuator designed as a primary RF signal conditioning module with asymmetric fixed and programmable attenuation channels.
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Key product information and technical features.
NI PXI-5695 is an 8 GHz RF attenuator implemented as a single-slot PXI module. NI identifies it specifically as the “NI PXI-5695 8 GHz RF Attenuator,” confirming it as a primary hardware module rather than a passive accessory. This model belongs to NI’s RF signal conditioning device class and is intended for PXI-based RF test systems. Source: https://download.ni.com/support/manuals/376268a.pdf
The PXI-5695 combines fixed attenuation and programmable attenuation in one instrument, but its two RF channels are not identical. CH 0 IN/OUT operates as a fixed attenuator with switchable main and direct paths; NI states the direct path bypasses the programmable circuitry, passes DC to the output, and that the main path is DC-coupled. CH 1 IN/OUT operates as a programmable attenuator with attenuation adjustable in 0.5 dB nominal steps, and NI specifies that CH 1 is AC-coupled. Source: https://download.ni.com/support/manuals/376268a.pdf
For integration, the module uses front-panel SMA RF connections. NI instructs users to use an SMA torque wrench and torque SMA connections to 100 N·cm, which helps identify the connector style and installation requirement from official documentation. The standard kit documented by NI includes the module, an SMA cable, NI-5690 driver software media, and the Getting Started Guide, while a PXI chassis and PXI embedded controller or MXI controller system are required external platform components. Source: https://download.ni.com/support/manuals/376268a.pdf
Verified product specifications.
| Frequency class | 8 GHz |
|---|---|
| Form factor | Single-slot PXI module |
| Channel count | 2 channels |
| Programmable attenuation step size on CH 1 | 0.5 dB nominal steps |
| RF connector type | SMA |
| Recommended SMA torque | 100 N·cm |
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Platform
8 GHz RF attenuator
SMA RF connectors
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Product-specific answers based on available technical information.
NI identifies the PXI-5695 as the “NI PXI-5695 8 GHz RF Attenuator,” implemented as a single-slot PXI module.
No. NI documents CH 0 as a fixed attenuator with switchable main and direct paths, while CH 1 is a programmable attenuator with 0.5 dB nominal step size.
The PXI-5695 uses the NI-5690 driver family, and NI-5690 20.0 lists the device explicitly as supported hardware.
NI states that a PXI chassis and either a PXI embedded controller or MXI controller system are required external items.