PXIe-7865

The NI PXIe-7865 is an elite-tier R Series Multifunction Reconfigurable I/O (RIO) module, specifically engineered for high-bandwidth applications that demand the absolute limits of analog speed and hardware-timed determinism. Featuring a Xilinx Kintex-7 160T FPGA, the PXIe-7865 distinguishes itself with its significantly enhanced sampling rates, providing a powerful platform for ultra-fast closed-loop control, high-frequency signal analysis, and complex sensor emulation. It is the premier choice for mission-critical Hardware-in-the-Loop (HIL) and power electronics testing within the PXI Express architecture.

1. High-Speed Analog Performance: 2 MS/s Simultaneous Acquisition

The defining feature of the PXIe-7865 is its high-speed analog front-end, optimized for dynamic signal integrity:

• 8 Analog Inputs (AI): 16-bit resolution with an industry-leading 2 MS/s per-channel simultaneous sampling rate. This allows for the capture of high-frequency transients and phase-aligned signals without the multiplexing delays found in standard DAQ cards.

• 8 Analog Outputs (AO): 16-bit resolution with a 2 MS/s update rate, enabling the generation of high-fidelity, high-frequency arbitrary waveforms and rapid response for high-speed actuators.

2. Computational Superiority: Xilinx Kintex-7 160T FPGA

At the heart of the PXIe-7865 is the Kintex-7 160T FPGA, which provides the massive parallel processing power required to sustain 2 MS/s data streams. With 600 dedicated DSP slices and over 162,000 logic cells, engineers can implement sophisticated, real-time algorithms—such as digital filtering, fast control laws, and PWM generation—directly in hardware. This ensures sub-microsecond loop rates and eliminates the jitter inherent in software-based controllers.

3. Integrated Digital I/O and Custom Protocol Support

The module features 32 Digital I/O (DIO) lines, all directly connected to the FPGA fabric. This low-latency digital interface allows for the implementation of:

• High-speed custom communication protocols (e.g., SENT, BiSS, or proprietary serial links).

• Ultra-precise timing and synchronization for external hardware.

• Advanced PWM and pulse-train generation for power converter control. The reduced DIO count compared to other R Series modules is a deliberate trade-off to prioritize the immense bandwidth required for the high-speed analog subsystem.

4. High-Throughput System Interconnect and P2P Streaming

Leveraging the PXI Express backplane, the PXIe-7865 is built for high-throughput data movement. It supports Peer-to-Peer (P2P) streaming, allowing the module to send data directly to other PXI modules—such as high-performance digitizers or FPGA-based coprocessors—without traversing the host CPU. This architecture is vital for reducing system-level latency in complex, multi-chassis test environments.

5. LabVIEW FPGA: Rapid Prototyping and Determinism

The PXIe-7865 is fully integrated with the LabVIEW FPGA Module, enabling engineers to design and deploy custom hardware logic using a graphical data-flow language. This provides 100% deterministic execution on the FPGA silicon, ensuring that critical safety limits and control loops are maintained regardless of the host operating system’s load. It bridges the gap between high-level algorithm design and low-level hardware performance.

6. Premier Application Scenarios

The PXIe-7865 is optimized for the most demanding technical deployments:

• Power Electronics Research: High-frequency inverter/converter control and grid-tie simulation.

• Automotive ECU Validation: High-speed sensor simulation and transient response testing.

• Medical Device Testing: Real-time feedback for high-speed ultrasound or laser-based systems.

• Aerospace HIL: Simulation of high-bandwidth flight surfaces and propulsion controls.

Summary

The NI PXIe-7865 represents the pinnacle of R Series speed and precision. By combining 2 MS/s simultaneous analog I/O with the formidable processing power of the Kintex-7 FPGA, it provides a robust platform for the most aggressive real-time control and acquisition tasks. Contact our technical engineering team today for professional technical support and competitive project pricing to power your next-generation validation platform.