The NI PXI-6220 is a 16-bit multifunction DAQ module for PXI systems, delivering analog input, digital I/O, and counter/timer functionality in a single card. It addresses laboratory automation, research, design verification, and manufacturing test workflows with integrated measurement and control capabilities. The module combines an 8-channel differential (or 16 single-ended) analog front end, 24 digital I/O lines with hardware-timed clocking, and dual 32-bit counters to support encoder and timing measurements across diverse instrumentation architectures.
Technical Specifications
Analog Input
• 8 differential or 16 single-ended channels
• 16-bit ADC resolution with no missing codes guaranteed
• Input ranges: ±0.2 V, ±1 V, ±5 V, ±10 V
• Maximum working voltage: ±11 V from analog input ground
• Small signal bandwidth (−3 dB): 700 kHz
• Sample rate: 250 kS/s single channel or 250 kS/s aggregate multichannel
• Timing accuracy: 50 ppm of sample rate; timing resolution: 50 ns
• Input FIFO: 4,095 samples; scan list memory: 4,095 entries
• Data transfer modes: DMA (scatter-gather), interrupts, programmed I/O
Digital I/O
• 24 total channels
• 8 hardware-timed lines at up to 1 MHz
• Digital debounce filters and protected digital lines supported
Counter/Timers
• Two 32-bit counters operating at 80 MHz
• Direct encoder measurement support
Triggering & Synchronization
• Digital trigger capability
• RTSI or PXI_TRIG device-to-device trigger bus
– Key Features
• 68-pin VHDCI connector for signal connectivity
• Operates in PXI expansion chassis and PXI Express hybrid slots
• Compatible with NI-DAQmx, NI-DAQmx Base, and NI Measurement Hardware DDK drivers
• Supports ANSI C, LabVIEW, LabWindows/CVI, Measurement Studio, SignalExpress, Visual Basic, and Visual Studio .NET development environments
• Multi-OS support: Linux, Mac OS X, Windows 2000/XP, Windows Vista x64/x86, and Windows 7
– Typical Applications
Laboratory automation, design verification testing, manufacturing test environments, and research instrumentation requiring synchronized analog sampling with digital control and timing measurements.
– Physical & Integration
• Dimensions: 4.2 in. × 6.1 in.
• Weight: 5.5 oz
• Part of the M Series low-cost multifunction DAQ family
