The NI PXI-2722 is a 16-bit, 5-channel programmable resistor module for PXI systems. It provides resistance programming in 0.25 Ω steps.
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Key product information and technical features.
Part of the NI 272x programmable resistor family, the PXI-2722 provides software-controlled resistance for resistance-based input simulation. NI describes this family for hardware-in-the-loop validation and production resistance testing.
Programmed resistance steps are not the same as terminal resistance accuracy. Relay contacts and trace resistance contribute to channel resistance; NI specifies a typical minimum resistance of 2 Ω.
Verified product specifications.
| Number of channels | 5 |
|---|---|
| Resistance range per channel | 0.25–16,320 Ω |
| Resistance resolution | 0.25 Ω |
| Typical minimum resistance | 2 Ω |
| Maximum current per channel | 0.3 A |
| Maximum power per channel | 0.25 W |
| Maximum channel-to-channel and channel-to-ground voltage | 60 VDC or 30 VAC rms, CAT I |
| Front-panel connector | 37-pin D-SUB |
| DMM port | 2 × 2 Micro-Fit connector |
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Manufacturer
Module platform
Programmable resistor module
NI-272x Reference VIs for LabVIEW
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Product-specific answers based on available technical information.
No. Resolution describes programming steps. NI notes that relay contact resistance, trace resistance, and temperature affect channel accuracy, and specifies a typical minimum resistance of 2 Ω.
The PXI-2722 provides five 16-bit channels, while the PXI-2720 provides ten 8-bit channels. NI lists their nominal per-channel ranges as 0–16 kΩ and 0–255 Ω, respectively.
NI provides NI-272x Reference VIs for LabVIEW, including utilities that convert requested resistance or temperature into relay-control lists. Check the selected download's software and operating-system requirements.