The NI PCI-6220 is a 16-bit multifunction DAQ board for PCI bus systems, integrating analog inputs, digital I/O, and counter/timers in a single device. It delivers up to 250 kS/s across 16 single-ended or 8 differential analog channels with ±0.2 V to ±10 V input ranges, 24 digital I/O lines clocked at 1 MHz, and dual 32-bit counters supporting PWM and quadrature encoder functions. The board communicates via a single 68-pin VHDCI connector and operates across the PCI bus at 3.3 V signaling.
Technical Specifications
Analog Input
• 16 single-ended or 8 differential channels
• 16-bit resolution with no missing codes guaranteed
• 250 kS/s single-channel maximum; 250 kS/s aggregate multichannel rate
• Input ranges: ±0.2 V, ±1 V, ±5 V, ±10 V
• Maximum working voltage: ±11 V of AI GND
• 700 kHz small signal bandwidth (-3 dB)
• DC input coupling; 50 ppm timing accuracy; 50 ns timing resolution
• 4,095-sample input FIFO; 4,095-entry scan list memory
• >10 GΩ input impedance; 92 dB CMRR (DC to 60 Hz); ±100 pA input bias current
• DMA (scatter-gather), interrupt, and programmed I/O data transfers supported
Digital I/O
• 24 configurable lines; 8 clocked lines at 1 MHz
• 2,047-sample input and output FIFOs
• Individual lines programmed as input or output (not simultaneous)
Counters/Timers
• Two 32-bit counters; 80 MHz internal base clock; 20 MHz external base clock
• PWM output (duty cycle, frequency, or period modes); quadrature encoder input support
– Key Features
• NI-MCal calibration technology for enhanced accuracy
• Digital triggering support
• Six DMA channels
• SCC and SCXI signal conditioning module compatibility
• Compact form factor: 10.6 cm × 15.5 cm; 91 g
• Operating temperature: 0 °C to 55 °C
– Drivers & Integration
Supported by NI-DAQmx and NI-DAQmx Base drivers. RTSI bus connector enables synchronization with other NI timing and triggering systems.
