Description
The National Instruments USB-6225 is a Multifunction I/O Device known for its versatility and performance. This device is designed to cater to a wide range of applications requiring high-quality data acquisition and control. With part numbers including 779974-01, 779973-02, 779973-04, 779973-01, and 779974-04, it offers flexibility in configurations to meet specific project requirements.
The USB-6225 boasts 80 analog input channels, which can be utilized as either 80 single-ended channels or 40 differential channels, providing ample connectivity for sensors and signals. The 16-bit ADC resolution ensures high precision in measurements, making it suitable for demanding applications where accuracy is crucial.
It offers a maximum sample rate of 250 kS/s, whether operating in single or multiple channel modes, ensuring efficient data collection across all channels. The device’s timing accuracy is impressive, at 50 ppm of the sample rate, highlighting its reliability in synchronized measurements and control tasks.
To achieve optimum performance, a recommended warm-up time of 30 minutes is suggested before utilizing the device for critical measurements. Furthermore, to maintain its precision, calibration is recommended at least once a year.
The USB-6225 supports various input ranges, including ±0.2V, ±1V, ±5V, and ±10V, accommodating a wide variety of signal levels. Its maximum working voltage for analog inputs is ±11V, offering a buffer for overvoltage conditions without risking damage to the device. Additionally, the device is equipped with a generous input FIFO size of 4,095 samples, enhancing its capability to manage data efficiently.
Ensuring durability and protection, the USB-6225 includes overvoltage protection for its analog input channels. This feature safeguards the device and connected systems against unexpected voltage spikes, enhancing its reliability and longevity in industrial environments.
| Specification | Detail |
|---|---|
| Part Numbers | 779974-01, 779973-02, 779973-04, 779973-01, 779974-04 |
| Manufacturer | National Instruments |
| Model | USB-6225 |
| Type | Multifunction I/O Device |
| Analog Input Channels | 80 (Can be used as 80 single-ended or 40 differential channels) |
| ADC Resolution | 16-bit |
| Maximum Sample Rate | 250 kS/s (single and 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 (Analog Inputs) | ±11V |
| Input FIFO Size | 4,095 samples |
| Overvoltage Protection (Analog Input Channels) | Yes |
| Maximum Input Current (Overvoltage Condition) |



