National Instruments USB-6218

The National Instruments USB-6218 is a versatile multifunction data acquisition (DAQ) device designed to accommodate a wide array of industrial applications. Featuring a comprehensive set of functionalities, including digital input/output, analog input/output, and counters, the USB-6218 is particularly well-suited for tasks such as portable data logging, field monitoring, embedded OEM designs, in-vehicle data acquisition, and educational projects. This device is available under multiple part numbers, indicating options such as an isolated driver (779678-01), an OEM board-only kit (196203-01), and Linux/Mac compatibility (780106-01).

The USB-6218's notable 16-bit analog input resolution supports up to 16 differential or 32 single-ended input channels, ensuring rapid data capture with a maximum sample rate of 250 kS/s per channel. The device boasts a timing resolution of 50 ns and maintains accuracy within 50 ppm of the sample rate. With overvoltage protection of ±30 V while powered, it accommodates various input ranges from ±0.2 V to ±10 V, and features an input impedance greater than 10 GΩ to minimize signal distortion.

For analog output, the USB-6218 includes two 16-bit channels, each capable of a maximum update rate of 250 kS/s, and offers a low output impedance of 0.2 Ω along with overdrive protection up to ±30 V. The output ranges effectively achieve accurate and reliable signal delivery. The device also enhances flexibility with its digital I/O capabilities by incorporating two 32-bit counters for simplified control and monitoring tasks.

The USB-6218 ensures increased operational confidence with 60 V CAT I isolation, providing essential security in challenging environments. Included with the device is the NI-DAQmx driver and configuration tool, facilitating smoother setup and operation for optimized measurement performance. Additionally, the USB-6218 features advanced signal streaming technology that enables efficient, bidirectional data transfer over USB comparable to DMA, making it ideal for real-time applications.

For further details on dimensions and specifications, including variations based on connector types, please refer to the complete technical documentation. The USB-6218 is backed by a three-year warranty, with user and maintenance manuals available for download. Pricing is available upon request through National Instruments sales representatives.