Product Details

The NI PCI-6220 is a cost-effective M-series multifunction DAQ card designed for PCI bus test and measurement systems. It supports 16 single-ended or 8 differential analog input channels with 16-bit resolution, and the maximum sampling rate reaches 250 kS/s. This model does not integrate analog output channels, focusing on reliable analog input acquisition. It is equipped with 24 TTL-compatible digital I/O lines and two independent 32-bit, 80 MHz counter-timer channels. Users can select programmable input voltage ranges including ±0.2 V, ±1 V, ±5 V and ±10 V to match different sensor output levels. It adopts NI-MCal calibration technology to improve long-term measurement accuracy, and the high common-mode rejection ratio effectively suppresses power frequency noise and interference in general laboratory environments. The onboard 4095-sample FIFO buffer stabilizes continuous data streaming and reduces data loss during multi-channel scanning tasks.

This DAQ card uses a VHDCI signal connector for all I/O wiring, compatible with matched shielded cables and terminal blocks for low-level signal measurement. It supports digital triggering and flexible clock configuration, and can synchronize with other NI DAQ hardware via the RTSI bus to build multi-board coordinated test systems. The dual 32-bit counter channels can complete pulse counting, frequency measurement, period capture and incremental encoder signal monitoring. Digital I/O lines can read external status signals and drive low-power TTL circuits for trigger routing and simple interlock control. It supports DMA data transmission to reduce CPU occupancy during continuous sampling, and built-in self-calibration compensates gain and offset drift to maintain stable measurement accuracy for long-running logging tasks.

This multifunction daq card is widely used in general sensor data logging, temperature and pressure monitoring, educational laboratory measurement, small batch manufacturing test stations, strain signal acquisition and OEM measurement equipment integration. It supports NI-DAQmx drivers, compatible with LabVIEW, LabWindows/CVI and C/C++ programming environments, so engineers can quickly develop multi-channel data acquisition programs. As a discontinued legacy M-series DAQ hardware, the PCI-6220 is mainly used for maintenance and spare replacement of existing measurement platforms. It can maintain stable multi-channel scanning performance, retain mature test workflows and avoid the high cost of rebuilding the whole measurement system. Its operating temperature range is 0°C to 55°C, supporting stable continuous operation in laboratory and light industrial environments.