Description
The USB-6225 is a PC-based multifunction DAQ device characterized by its part numbers 779974-01, 779973-02, 779973-04, 779973-01, and 779974-04. This device is equipped with 80 analog input channels, which can function as either 80 single-ended or 40 differential channels. Each channel is capable of a 16-bit Analog-to-Digital Conversion (ADC) resolution, providing high precision for data acquisition tasks.
For applications requiring fast data sampling, the USB-6225 supports a maximum sample rate of 250 kS/s for both single and multiple channel configurations. This rate is maintained with a timing accuracy of 50 ppm of the sample rate. To ensure accuracy and stability, a recommended warm-up time of 30 minutes is suggested before use, and a calibration period of at least once a year is advised.
The device offers a variety of input ranges, including ±0.2V, ±1V, ±5V, and ±10V, with a maximum working voltage for analog inputs of ±11V. It also features an input FIFO size of 4,095 samples and provides overvoltage protection for all analog input channels and sense channels, safeguarding the device against electrical damage. Under overvoltage conditions, the input current is limited to ±20 mA max.
In addition to its input capabilities, the USB-6225 boasts 2 analog output channels with a 16-bit Digital-to-Analog Conversion (DAC) resolution. These channels can achieve a maximum update rate of 833 kS/s for one channel and 740 kS/s for both channels operating simultaneously, with an output range of ±10
| Specification | Detail |
|---|---|
| Part Numbers | 779974-01, 779973-02, 779973-04, 779973-01, 779974-04 |
| Category | PC-based Multifunction DAQ |
| Model | USB-6225 |
| 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 |
| Recommended Warm-up Time | 30 minutes |
| Calibration Period | 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 max |
| Analog Output Channels | 2 |
| DAC Resolution | 16 bit |
| Maximum Update Rate (One Channel) | 833 kS/s |
| Maximum Update Rate (Both Channels) | 740 kS/s |
| Output Range | ±10 V |




