The NI PCI-7833R is a multifunction R Series RIO device built around a Xilinx Virtex-II 3M gate FPGA, designed for high-speed data acquisition, real-time signal processing, and custom control logic. The user-programmable FPGA delivers hardware-timed I/O control configured entirely through LabVIEW and the LabVIEW FPGA Module, enabling precise synchronization, onboard decision-making, and direct command of analog and digital signals without CPU latency.
Technical Specifications
FPGA
• Xilinx Virtex-II V3000 (3M Gate)
• 28,672 flip-flops, 96 18×18 multipliers, 1,728 kbits embedded block RAM
• LabVIEW FPGA Module programmable
Analog Inputs
• 8 independent channels, 16-bit resolution
• ±10 V input range
• 200 kS/s maximum sampling rate per channel
• Differential and Referenced Single-Ended input modes
Analog Outputs
• 8 independent channels, 16-bit resolution
• ±10 V output range
• 1 MS/s maximum update rate per channel
• 1.25 Ω output impedance, ±2.5 mA current drive
• DC coupling with short-circuit protection to ground
Digital I/O
• 96 individually configurable lines (inputs, outputs, counters, custom logic)
• Up to 40 MHz maximum rate
• 3.3 V and 5 V TTL compatible logic levels
• Programmable power-on state per line
Power & Interface
• 727 mA from +3.3 VDC (±5%) supply
• 4.50 to 5.25 VDC available at I/O connectors, 250 mA per pin
• PCI bus interface (master or slave operation)
– Key Features
• Dedicated ADC per channel enables independent timing, triggering, and multirate sampling
• Onboard FPGA processing eliminates host CPU bottlenecks for deterministic control
• Individually configurable digital lines support PWM, encoder inputs, and protocol emulation
• Hardware-timed execution provides cycle-accurate I/O synchronization
– Typical Applications
• Custom discrete and analog control systems
• Sensor simulation and hardware-in-the-loop testing
• Rapid prototyping of control algorithms
• Digital protocol emulation and timing-critical signal processing
– Compatibility & Integration
Operates as PCI master or slave device. Full integration with National Instruments LabVIEW graphical programming environment via FPGA Module.
