NI PXIe Modules

NI PXIe modules are modular instruments and data acquisition devices built for the PXI Express platform. They combine PCI Express communication with chassis timing and triggering resources, allowing engineers to assemble automated measurement systems around a shared controller. Applications include aerospace and defense testing, electronics validation, semiconductor characterization, and laboratory research. Rather than selecting one instrument for every task, users can combine specialized modules in a compatible chassis.

The range includes multifunction data acquisition, sensor measurement, oscilloscopes, waveform generators, digital multimeters, source measure units, and digital pattern instruments. NI X Series modules address general measurement and control requirements. For example, the PXIe-6363, part number 781056-01, provides 32 single-ended analog inputs, 16-bit resolution, four analog outputs, 48 digital I/O lines, and four 32-bit counters. Its multiplexed analog inputs should not be confused with simultaneous sampling.

For conditioned sensor measurements, the SC Express family integrates acquisition and signal conditioning. The PXIe-4330, part number 781346-01, provides eight simultaneous, 24-bit bridge input channels. Programmable excitation, bridge completion, and filtering support measurements from bridge-based strain, force, and pressure sensors when configured with suitable connections.

Dedicated instruments address different signal requirements. The PXIe-5162 oscilloscope offers up to 1.5 GHz bandwidth and 5 GS/s sampling, with performance dependent on the acquisition configuration. The PXIe-54x3 waveform generator family includes the PXIe-5413, PXIe-5423, and PXIe-5433, offering 20, 40, and 80 MHz bandwidth, respectively. These generators provide configurable test signals for stimulus-response measurements.

Precision electrical testing can combine the PXIe-4081 digital multimeter, part number 783130-01, with a source measure unit such as the PXIe-4139. The PXIe-4081 provides 7½-digit measurements, while the PXIe-4139 sources and measures voltage or current within its operating limits. For semiconductor digital testing, the PXIe-6570, part number 785283-01, provides 32 bidirectional channels and occupies two chassis slots.

Selection requires more than matching the PXIe prefix. Check channel count, accuracy, bandwidth, sampling architecture, connectors, module width, power consumption, and cooling requirements. PXIe modules require compatible PXI Express or hybrid peripheral slots; conventional PXI-only slots are not suitable. Shared chassis resources enable synchronization, but the actual timing configuration depends on the instruments and application.

For replacement projects, record existing driver versions and terminal block connections before changing hardware. Similar model names do not guarantee identical memory, channel configurations, software requirements, or interchangeable accessory combinations.

Software compatibility also matters. Use the appropriate driver, such as NI-DAQmx, NI-SCOPE, NI-FGEN, NI-DMM, or NI-DCPower, and confirm support for the operating system and development environment. When requesting a quote from Apex Waves, provide the model, complete ordering part number, required accessories, and calibration needs. These details help identify suitable hardware for maintaining or expanding an existing test system.