# PXI-5690 National Instruments PXI Used

**Additional Features:**

-   2-channel fixed or programmable gain with bypass
-   \-165 dBm/Hz extended noise floor for NI PXI-5660
-   30 dB fixed gain on channel 0; -10 to +20 dB programmable gain on channel 1
-   Typical 5 dB noise figure on channel 0
-   100 kHz to 3.0 GHz frequency range
-   Typical -1.5 dB loss on bypass

The National Instruments PXI-5690 is an RF preamplifier offering fixed gain and configurable gain in a compact single-slot 3U PXI module. The PXI-5690 has gain and noise figure characteristics that optimize dynamic range and sensitivity in National Instruments RF vector signal analyzers. When used with the NI PXI-5660 analyzer, the PXI-5690 extends the testing and monitoring capability of the PXI-5660 down to -165 dBm/Hz. The PXI-5690 can also programmatically bypass its gain by switching to a direct path. This functionality enhances the testing and monitoring performance of the PXI-5660 by adding the previously unattainable capability to shift the dynamic range to easily monitor very weak and very strong signals.

## Details

- **Price:** 0.0 USD
- **Vendor:** National Instruments
- **Type:** Pxi
- **Tags:** Manufacturers, National Instruments, Other Equipment, product_manual_group_1, Product_used, PXI

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- PXI-5690 National Instruments PXI Used

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> Source: [ValueTronics](https://valuetronics.com/products/pxi-5690-national-instruments-pxi-used)
> Updated: 2026-05-21