NI PXIe‑5423 40 MHz 16‑Bit Arbitrary Waveform Generator

Product Description

The PXIe‑5423 is a PXI Express modular arbitrary waveform generator (AWG) manufactured by National Instruments. It is available in 1‑channel or 2‑channel configurations with 16‑bit DAC resolution, 40 MHz analog bandwidth and 800 MS/s DAC update rate. It adopts fractional resampling architecture and is equipped with 128 MB or 256 MB onboard waveform memory. The front‑panel SMA connectors deliver output amplitude from 7.75 mVpp up to 24 Vpp (high‑impedance load, ±12 V maximum). Designed for PXIe chassis, it supports NI‑TClk multi‑instrument synchronization and integrates PFI trigger and marker signals. It is widely used in automated test benches, hardware‑in‑the‑loop simulation and electronic validation systems, and supplied as spare test hardware.

Product Functions

• Generate standard waveforms such as sine, square, triangle and ramp, as well as user‑defined arbitrary waveforms and waveform sequences
• Script mode and streaming output support continuous waveform playback without repeating fixed memory segments
• Multiple trigger modes including single, burst, continuous and stepped frequency‑list generation with up to 1024 frequency steps
• PFI marker and trigger I/O, combined with NI‑TClk, achieves low‑skew synchronization among multiple PXIe instruments in one chassis
• Onboard self‑calibration for DC gain and offset to maintain long‑term measurement accuracy under temperature drift
• Front‑panel LED indicators show module access status, waveform generating state and hardware fault alarms
• NI‑FGEN instrument driver compatible with LabVIEW, LabWindows/CVI and C/C++ for automated test programming and system integration

Application Scenarios

• Aerospace and defense avionics signal simulation, sensor signal injection and hardware‑in‑the‑loop(HIL) test platforms
• Automotive ECU validation, sensor simulation, noise injection and component durability bench testing
• Power electronics, renewable energy converter control signal simulation and transient disturbance testing
• Semiconductor characterization, analog circuit verification and high‑speed signal integrity measurement systems
• Wireless communication, ultrasonic and industrial sensor excitation signal generation for laboratory and production test stations
• Spare replacement and function upgrade of existing NI PXIe automated test systems

Common Problems

• Module not detected in MAX：poor PXIe slot contact, incompatible chassis/slot type, outdated NI‑FGEN driver or damaged backplane interface
• Waveform output distorted or noisy：incorrect load impedance, loose SMA connection, missing 50‑Ω termination or external electromagnetic interference
• Streaming or script mode stops unexpectedly：onboard memory overflow, excessive data throughput, incorrect script syntax or firmware version mismatch
• Trigger and marker timing jitter or synchronization failure：wrong NI‑TClk routing, unstable chassis reference clock or damaged PFI wiring
• Amplitude and DC offset drift：long‑term thermal drift, self‑calibration not performed or operating temperature out of specified range
• Front‑panel error LED lights red：overload on analog output, internal hardware fault, invalid waveform configuration or power rail abnormality
• Automated test program reports driver timeout：CPU and PCIe bus bottleneck, background software conflict or insufficient chassis cooling causing overheating