The NI PCI-6229 is a multifunction data acquisition module for PCI bus systems, delivering analog input, output, and digital I/O capabilities in a compact form factor. It provides 16 differential or 32 single-ended analog input channels at 16-bit resolution with aggregate sampling to 250 kS/s, four 16-bit analog outputs, 48 TTL/CMOS digital I/O lines, and two 32-bit counter/timers. The module supports multiple data transfer modes—DMA with scatter-gather, interrupts, and programmed I/O—and integrates directly into LabVIEW, LabWindows/CVI, and Measurement Studio environments.
Technical Specifications
Analog Inputs
• 16 differential or 32 single-ended channels
• 16-bit resolution
• 250 kS/s aggregate sample rate (single-channel max 250 kS/s)
• Input ranges: ±0.2 V, ±1 V, ±5 V, ±10 V
• Input impedance: >10 GΩ parallel with 100 pF (device on); 820 Ω (device off)
• CMRR: 92 dB (DC to 60 Hz)
• Crosstalk: -75 dB (adjacent), -90 dB (non-adjacent) at 100 kHz
• Small signal bandwidth: 700 kHz (-3 dB)
• Input FIFO: 4,095 samples; Scan list memory: 4,095 entries
• Overvoltage protection: ±25 V (device on), ±15 V (device off) for up to two pins
• Maximum working voltage: ±11 V of AI GND
• Timing accuracy: 50 ppm; Timing resolution: 50 ns
Analog Outputs
• 4 channels, 16-bit resolution
• Output range: ±10 V
• Output impedance: 0.2 Ω
• Output current drive: ±5 mA
• Timing resolution: 50 ns
Digital I/O & Counters
• 48 digital I/O channels (TTL/CMOS)
• Up to 32 hardware-timed lines at 1 MHz
• 2 × 32-bit counter/timers at 80 MHz timebase
Bus & Physical
• PCI/PXI interface (3.3 V or 5 V); 6 DMA channels
• Two 68-pin VHDCI connectors
• Dimensions: 4.2 × 6.1 inches; Weight: 3.5 oz
• Operating temperature: 0 °C to 55 °C
– Key Features
• Flexible analog input configuration (differential or single-ended)
• High input impedance (>10 GΩ) minimizes loading effects
• Excellent CMRR and low crosstalk for precision measurements
• 4,095-sample input FIFO reduces host processor overhead
• Six DMA channels enable efficient high-speed data streaming
• Counter/timers support quadrature encoding and PWM
– Compatibility & Integration
Native support for LabVIEW, LabWindows/CVI, and Measurement Studio with standard software drivers. PCI/PXI form factor supports 3.3 V and 5 V signaling environments.
