Description
The USB-6225 Multifunction I/O Device, manufactured by National Instruments, comes with a variety of part numbers including 779974-01, 779973-02, 779973-04, 779973-01, and 779974-04. This device boasts 80 analog input channels, which can be configured as either 80 single-ended or 40 differential channels, providing flexibility in data acquisition tasks. Each channel is supported by a 16-bit ADC resolution, ensuring precise data capture.
When it comes to sampling rates, the USB-6225 does not disappoint, offering a maximum sample rate of 250 kS/s for both single and multiple channel configurations. It also maintains timing accuracy within 50 ppm of the sample rate, requiring a warm-up time of 30 minutes for optimal performance. For maintenance, a calibration frequency of at least once a year is recommended.
The device supports various input ranges including ±0.2V, ±1V, ±5V, and ±10V, with a maximum working voltage for analog inputs set at ±11V. Additionally, it has an input FIFO size of 4,095 samples and offers overvoltage protection across all analog input channels and sense channels, protecting the device from potential damage. The input current in an overvoltage condition is limited to ±20 mA maximum, further enhancing device safety.
The USB-6225 is also equipped with two analog output channels, featuring a 16-bit DAC resolution. These outputs can achieve a maximum update rate of 833 kS/s for one output channel and 740 kS/s when both channels are used, with an output range of ±10 V. This combination of features makes the USB-6225 a versatile and reliable solution for a wide range of data acquisition and control applications.
| Specification | Detail |
|---|---|
| Part Numbers | 779974-01, 779973-02, 779973-04, 779973-01, 779974-04 |
| Device Type | USB-6225 Multifunction I/O Device |
| Manufacturer | National Instruments |
| Analog Input Channels | 80 (Can be used as 80 single-ended or 40 differential channels) |
| ADC Resolution | 16-bit |
| Maximum Sample Rate (Single Channel) | 250 kS/s |
| Maximum Sample Rate (Multiple Channels) | 250 kS/s |
| Timing Accuracy | 50 ppm of sample rate |
| 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 | Yes, for all analog input channels and sense channels |
| Input Current (Overvoltage Condition) | ±20 mA maximum |
| Analog Output Channels | 2 |
| DAC Resolution | 16-bit |
| Maximum Update Rate (One Output Channel) | 833 kS/s |
| Maximum Update Rate (Both Channels) | 740 kS/s |
| Output Range | ±10 V |
