Pickering Interfaces has introduced three new PXI/PXIe analog output modules, further expanding its signal sourcing and sensor simulation portfolio for functional testing and hardware-in-the-loop (HIL) applications.
The new lineup covers multi-channel waveform generation, precision DAC outputs, and high-density thermocouple simulation.
Together, these modules allow engineers to recreate realistic analog signals, sensor behaviors, and waveform conditions within compact, open-platform test systems.
Designed to deliver high channel density within a single PXI/PXIe slot, they also offer broad chassis compatibility and robust driver support helping reduce rack space, simplify system design, and minimize long-term obsolescence risks.
The 41-770 (PXI) and 43-770 (PXIe) DAC modules provide:
- Up to four fully isolated analog output channels in a single 3U slot.
- Each channel can be programmed independently across multiple voltage and current ranges, supporting outputs up to ±40 V and ±20 mA.
- They can also simulate open-circuit conditions, allowing engineers to test real-world fault scenarios such as broken wiring or sensor failures.
- A built-in hardware interlock adds an extra layer of protection for both the device under test and the overall system.
For waveform generation, the 41-625 (PXI) and 43-625 (PXIe) modules offer up to 32 independent output channels per slot.
They support frequencies from DC up to 300 kHz, making them ideal for simulating signals from accelerometers and other multi-channel sources. Each channel has its own memory for storing waveforms, including sine, standard, and user-defined arbitrary signals.
Using Direct Digital Synthesis (DDS), frequency can be adjusted instantly via software, while trigger functions allow coordinated signal generation and frequency sweeps based on external events.
The PXI 41-761A module is purpose-built for thermocouple simulation, delivering precise microvolt-level output with integrated fault insertion capabilities.
It features independently isolated, two-wire low-voltage outputs that replicate the behavior of common thermocouple types, including support for different cold junction configurations and proper handling of common-mode voltages.
With up to 32 fully isolated channels in a single slot, it offers one of the highest thermocouple simulation densities available without requiring additional switching hardware.
These modules are well-suited for HIL simulation, functional testing, production environments, and fault injection. By enabling fully software-controlled signal generation, they eliminate the need for physical sensors, environmental chambers, or manual fault setups. For space-constrained PXI and PXIe systems, they combine signal generation, sensor simulation, switching, and connectivity within a single modular architecture.
Drivers are available for both Windows and Linux, with support for multiple programming environments, including C, Python, C#, MATLAB, Simulink, and LabVIEW.
A Soft Front Panel is also included to simplify setup, testing, and debugging. Available in both PXI and PXIe formats, the modules integrate seamlessly with standard PXI and Pickering LXI/USB chassis, supporting the development of scalable, long-life test systems based on open industry standards.
Leadership Comment
“Building on Pickering’s industry-leading position in modular signal switching and sensor simulation, our expanding portfolio of PXI/PXIe analog output instrumentation modules spans a broad spectrum of electronics test applications—from multi-channel waveform and function generation to precision DAC outputs and high-density thermocouple simulation,” said Stephen Jenkins, Simulation Product Manager at Pickering. “Whether you’re building a functional tester for the production line or an HIL test system, Pickering’s instrumentation offering delivers high channel density, reliable precision, and dependable long-term support.”
“These new analog output modules deliver true signal simulation, not approximation,” added Jenkins. “They are purpose-built for test, rather than repurposed general-purpose instruments. Each module is designed to accurately replicate real-world sensor or signal behavior for a specific simulation task — thermocouple, DAC, or arbitrary waveform — enabling more realistic and reliable automated testing than general-purpose voltage sources or arbitrary waveform generators.”
All standard products manufactured by Pickering Interfaces include a three-year warranty and guaranteed long-term product support.
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