The NI PXIe-7846/7846R R Series Reconfigurable I/O Module is a high-performance PXI Express module featuring a user-programmable Xilinx Kintex-7 160T FPGA for custom signal processing, real-time control, and embedded applications. Built on 28 nm silicon process technology, it delivers precision analog and digital I/O with FPGA-based flexibility for hardware-in-the-loop simulation, data acquisition, and control systems.
Technical Specifications
FPGA
• Xilinx Kintex-7 160T with TSMC 28 nm high-performance low-power process
• LabVIEW FPGA Module programmable for precise timing and custom logic
• 7 series architecture supports design portability across Xilinx platforms
Analog Input
• 8 channels with software-selectable DIFF, NRSE, or RSE input modes
• 16-bit SAR ADC, 2 µs conversion time, 500 kS/s per channel maximum
• DC coupling; ±42 V powered-on protection, ±35 V powered-off protection
Analog Output
• 8 channels single-ended voltage output
• 16-bit enhanced R-2R DAC, 1 µs update time, 1 MS/s maximum rate
• DC coupling with dedicated ground references
Digital I/O
• 48 bidirectional channels across two connectors
• Connector 0: 16 low-speed channels, 10 MHz maximum
• Connector 1: 32 high-speed channels, 80 MHz maximum, 50 Ω characteristic impedance, external clock support
• Selectable logic levels: 1.2 V, 1.5 V, 1.8 V, 2.5 V, or 3.3 V
• Overvoltage, undervoltage, and overcurrent protection per channel
• Configurable input/output with default power-on state of input low with pull-down resistors
– Key Features
• User-configurable FPGA with Kintex-7 resources for signal processing and control logic
• Mixed-signal I/O with 8 analog input and 8 analog output channels
• High-speed digital channels routed with controlled impedance for signal integrity
• Independent ground references for analog inputs and outputs
• Flexible logic level selection supports legacy and modern digital standards
– Typical Applications
• Hardware-in-the-loop (HIL) simulation and validation
• Custom real-time data acquisition and signal conditioning
• Embedded FPGA-based control systems
• High-speed digital signal processing with analog interfacing
– Compatibility & Integration
Integrates into PXI Express chassis. FPGA development supported through LabVIEW FPGA Module for synchronous timing control and custom I/O processing.
