Description
The USB-6225 is a multifunction I/O device manufactured by National Instruments. This device is designed for a wide range of applications and provides a robust set of features to accommodate various data acquisition needs.
It supports 80 single-ended or 40 differential analog input channels, offering flexibility in how sensors can be connected. With a 16-bit ADC resolution, it ensures accurate data collection, making it suitable for precise measurements. The device can handle a maximum sample rate of 250 kS/s for single or multiple channels, allowing for high-speed data acquisition.
The timing accuracy of the USB-6225 is maintained at 50 ppm of the sample rate, which underscores its reliability in synchronized sampling. To achieve optimal performance, it is recommended to allow a warm-up time of 30 minutes before operation. For maintaining its accuracy and reliability, calibration is advised at least once a year.
Regarding input ranges, the device can accommodate signals of ±0.2V, ±1V, ±5V, and ±10V, providing versatility in handling various signal amplitudes. It is designed with a maximum working voltage for analog inputs at ±11V, ensuring that it can tolerate slightly higher voltages than its specified input ranges.
The device also features an input FIFO size of 4,095 samples, enabling efficient data buffer management for continuous data acquisition. Furthermore, it includes overvoltage protection for all analog input and sense channels, enhancing its durability and reliability. This protection ensures the device’s longevity and consistent performance, even in environments where voltage spikes might occur.
Overall, the USB-6225 from National Instruments stands out as a comprehensive solution for multifunction I/O tasks, combining high-resolution data acquisition with robust protection features and flexible signal handling capabilities.
| Specification | Detail |
|---|---|
| Manufacturer | National Instruments |
| Model | USB-6225 |
| Part Numbers | 779974-01, 779973-02, 779973-04, 779973-01, 779974-04 |
| Type | Multifunction I/O Device |
| Analog Input Channels | 80 (Single-Ended) or 40 (Differential) |
| ADC Resolution | 16-bit |
| Maximum Sample Rate | 250 kS/s (Single or Multiple Channels) |
| Timing Accuracy | 50 ppm of Sample Rate |
| Recommended Warm-Up Time | 30 minutes |
| Calibration Frequency | At least once a year |
| Input Ranges | ±0.2V, ±1V, ±5V, ±10V |
| Maximum Working Voltage for Analog Inputs | ±11V |
| Input FIFO Size | 4,095 samples |
| Overvoltage Protection | Yes, for all analog input and sense channels |
| Input Current during Overvoltage |
Question 1: What is the maximum sample rate of the USB-6225? Question 2: How many analog input channels does the USB-6225 support? Question 3: What is the ADC resolution of the USB-6225? Question 4: What input voltage ranges can the USB-6225 handle? Question 5: How often should the USB-6225 be calibrated? |
