The National Instruments PXI-5695 (Part Number: 781036-01) is a high-performance PXI RF attenuator designed for precise control in RF applications. This 2-channel module features a programmable attenuation path and a fixed attenuation path, allowing for a maximum net attenuation of 70 dB at 2.5 GHz when combined. The PXI-5695 enhances the power accuracy of RF signal generators, particularly in low power ranges, by adjusting the output signal to desired power levels. Operating at 50 MHz to 8.0 GHz, the device offers a resolution of +0.5 dB on channel one (CH 1), with a calibration accuracy of ±0.7 dB, a settling time of +4 μs, and a maximum input power of +27 dBm (5 Vrms, 7 Vpk) alongside a maximum reverse power of +26 dBm.

The module includes SMA female connectors on the front panel for both channels, designed for 50 Ω impedance. With dimensions of 21.6 cm x 2.0 cm x 13.0 cm and a weight of 263 g, the PXI-5695 is compact and fits into a single 3U PXI slot. It operates with a maximum power consumption of 2.2 watts at +3.3 Vdc. Users can easily adjust the gain value on channel one, while channel zero maintains a fixed gain. Comprehensive user and maintenance manuals are available for download. For pricing, please contact a sales representative. This module is backed by a 2-3 year warranty, ensuring reliability across various applications.