Description
The National Instruments USB-6281 is a PC-based Multifunction DAQ device that comes with an impressive suite of features designed for a wide range of data acquisition applications. Manufactured by National Instruments, this model is known for its high reliability and performance.
The USB-6281 supports 16 single-ended or 8 differential analog input channels, providing flexibility in connecting various types of sensors. With an ADC resolution of 18-bits, it ensures high-precision measurements. The device can handle a maximum sample rate of 625 kS/s for a single channel and up to 500 kS/s when multiple channels are being sampled simultaneously, making it suitable for capturing fast transient signals as well as slow varying signals with great accuracy.
Regarding safety, the USB-6281 is equipped with overvoltage protection of ±25 V when the device is on and ±15 V when off. It can tolerate an input current of ±25 mA maximum per AI pin, and an input bias current of ±100 pA, protecting both the device and connected equipment from potential damage due to unexpected voltage spikes.
In addition to its analog input capabilities, the USB-6281 features 2 analog output channels with a DAC resolution of 16-bits. These outputs can be updated at a rate of 2.86 MS/s for a single channel or 2.00 MS/s per channel when both channels are used, allowing for precise control signals to be generated.
Its part numbers include 780054-01, 780054-07, 780053-04, 780053-01, and 780054-04, ensuring that users have a variety of options for their specific setup requirements. This level of detail and specification positions the National Instruments USB-6281 as a versatile and powerful tool for professionals
| Specification | Detail |
|---|---|
| Manufacturer | National Instruments |
| Model | USB-6281 |
| Part Numbers | 780054-01, 780054-07, 780053-04, 780053-01, 780054-04 |
| Category | PC-based Multifunction DAQ |
| Analog Input Channels | 16 single-ended or 8 differential |
| ADC Resolution | 18-bits |
| Single Channel Max Sample Rate | 625 kS/s |
| Multiple Channels Max Sample Rate | 500 kS/s |
| Overvoltage Protection | ±25 V (device on), ±15 V (device off) |
| Input Current (Overvoltage) | ±25 mA maximum/AI pin |
| Input Bias Current | ±100 pA |
| Analog Output Channels | 2 |
| DAC Resolution | 16-bits |
| Analog Output Update Rate | 2.86 MS/s (1 channel), 2.00 MS/s per channel (2 channels) |
| Timing Accuracy |
Question 1: How many AI channels does the USB-6281 have? Question 2: What is the ADC resolution of the USB-6281? Question 3: What’s the max sample rate for the USB-6281? Question 4: Does the USB-6281 have analog output channels? Question 5: What overvoltage protection does the USB-6281 offer? Related Products |
