PXIe-7857

The NI PXIe-7857 (Part Number: 784146-01) is an advanced R Series Multifunction Reconfigurable I/O (RIO) module engineered by National Instruments specifically for high-performance PXI Express systems. Powered by a robust, user-programmable Kintex-7 160T FPGA, this elite instrument enables engineers to execute complex onboard signal processing and achieve direct, deterministic control over I/O signals. It serves as a superior alternative to standard data acquisition hardware by offering complete, hardware-level flexibility over system timing and synchronization.

Engineered for ultimate adaptability, the PXIe-7857 natively integrates with the LabVIEW FPGA Module. This empowers test engineers to develop highly specialized applications requiring precise, microsecond-level timing control. Its custom programmable architecture unlocks capabilities that are often impossible with typical DAQ devices, allowing for the rapid execution of custom communication protocols, independent multirate sampling, and individualized channel triggering on the fly.

The architectural advantage of the PXIe-7857 lies in its dedicated analog-to-digital converter (ADC) per channel architecture combined with 512 MB of onboard Dynamic RAM (DRAM). By eliminating multiplexing delays, it guarantees true simultaneous sampling and independent timing for each input. The expansive 512 MB DRAM acts as a massive buffer, enabling the module to sustain high-throughput peer-to-peer (P2P) streaming and continuous data logging without taxing the host CPU.

Built for massive I/O density and uncompromising speed, the PXIe-7857 delivers 8 analog input channels capable of operating at an impressive 1 MS/s per channel, alongside 8 analog output channels. For digital operations, it features 48 bidirectional digital I/O channels that support high-speed signal frequencies. These versatile digital lines feature software-selectable logic levels ranging from 1.2 V to 3.3 V, granting engineers broad compatibility with a wide array of logic families and digital sensors.

On the physical layer, the PXIe-7857 provides secure and rugged connectivity designed for industrial resilience and stability. The hardware incorporates strict overvoltage protection and allows engineers to configure user-defined power-on and power-off states, ensuring that all connected external circuitry remains completely safe during unexpected system initialization, heavy load testing, and systematic shutdown sequences.

The PXIe-7857 is meticulously tailored for engineering applications where dynamic control and extreme determinism are non-negotiable. It is widely deployed as a core hardware foundation for hardware-in-the-loop (HIL) testing, rapid control prototyping, complex sensor simulation, and high-speed motion control. Its ability to seamlessly bridge real-time FPGA logic with versatile physical I/O makes it an invaluable asset in aerospace, automotive validation, and advanced scientific research.

Overall, the National Instruments PXIe-7857 Multifunction Reconfigurable I/O Module is an elite hardware solution for test engineers who prioritize absolute timing control, parallel I/O execution, and deep software integration. With its Kintex-7 160T FPGA, 512 MB onboard DRAM, and true simultaneous sampling capabilities, the PXIe-7857 provides a definitive, future-proof platform for building high-performance, deterministic automated test systems.