The USB-6218 is an isolated, multifunction DAQ device. It offers analog I/O, digital input, digital output, and two 32-bit counters. For improved accuracy and safety, the USB-6218 provides 60 V, CAT I isolation. It also features signal streaming technology that gives you DMA-like bidirectional high-speed streaming of data across USB. The device is ideal for test, control, and design applications including portable data logging, field monitoring, embedded OEM, in-vehicle data acquisition, and academic. The USB‑6218 features a lightweight mechanical enclosure and is bus powered for easy portability. The included NI‑DAQmx driver and configuration utility simplify configuration and measurements.
- Isolated 32 AI (16-Bit, 250 kS/s)
- 2 AO (250 kS/s)
- 8 DI, 8 DIO USB
- Python, ANSI C, C#.NET, and MathWorks MATLAB® software.
Specifications
| Analog Input | |
| Single-Ended Channels | 32 |
| Differential Channels | 16 |
| Analog Input Resolution | 16 bits |
| Maximum Voltage Range | |
| Range | -10 V – 10 V |
| Accuracy | 2.69 mV |
| Sensitivity | 91.6 µV |
| Minimum Voltage Range | |
| Range | -200 mV – 200 mV |
| Accuracy | 0.088 mV |
| Sensitivity | 4.8 µV |
| Number of Ranges | 4 |
| Simultaneous Sampling | No |
| On-Board Memory | 4095 samples |
| Analog Output | |
| Number of Channels | 2 |
| Resolution | 16 bits |
| Maximum Voltage Range | |
| Range | -10 V – 10 V |
| Accuracy | 3.512 mV |
| Minimum Voltage Range | |
| Range | -10 V – 10 V |
| Accuracy | 3.512 mV |
| Update Rate | 250 kS / s |
| Current Drive Single | 2 mA |
| Current Drive All | 4 mA |
| Digital I / O | |
| Bidirectional Channels | 0 |
| Input-Only Channels | 8 |
| Output-Only Channels | 8 |
| Timing | Software |
| Logic Levels | TTL |
| Programmable Input Filters | No |
| Supports Programmable Power-Up States? | Yes |
| Digital Input | |
| Input Type | Sinking Sourcing |
| Maximum Voltage Range | 0 V – 5.25 V |
| Digital Output | |
| Output Type | Sinking Sourcing |
| Current Drive Single | 16 mA |
| Current Drive All | 50 mA |
| Maximum Voltage Range | 0 V – 3.8 V |
| Counters / Timers | |
| Watchdog Timer | No |
| Counters | 2 |
| Buffered Operations | Yes |
| Debouncing / Glitch Removal | Yes |
| Max Source Frequency | 80 MHz |
| Pulse Generation | Yes |
| Size | 32 bits |
| Timebase Stability | 50 ppm |
| Logic Levels | TTL |
| Timing / Triggering / Synchronization | |
| Triggering | Digital |
| Physical Specifications | |
| Length | 16.9 cm |
| Width | 9.4 cm |
| Height | 3.1 cm |
| I / O Connector | Screw terminals |
| USB Power | Bus-Powered |
