Description
The USB-6281 is a PC-based Multifunction DAQ designed for a variety of applications. This device comes with a range of part numbers including 780054-01, 780054-07, 780053-04, 780053-01, 780054-04, allowing flexibility in selection based on specific needs.
It features 16 single-ended or 8 differential channels for analog inputs, providing a high level of precision with an 18-bits ADC resolution. The sample rate for single channel operation reaches a maximum of 625 kS/s, while for multiple channels, it can achieve up to 500 kS/s, ensuring efficient data acquisition.
The USB-6281 is built with overvoltage protection, safeguarding the device at ±25 V when powered on and ±15 V when off. It also supports an input current for overvoltage conditions of ±25 mA maximum/AI pin, with an input bias current of ±100 pA, further enhancing its reliability and durability in various environments.
For analog outputs, the device offers 2 channels with 16-bits DAC resolution. The output channel update rate is impressive, reaching up to 2.86 MS/s maximum for one channel, and 2.00 MS/s maximum per channel when both are used. This capability ensures smooth and precise control signals for applications requiring high-speed data output.
The USB-6281 also provides excellent timing accuracy of 50 ppm and includes 24 digital I/O channels, making it a versatile tool for a wide range of measurement and control tasks.
| Specification | Details |
|---|---|
| Part Numbers | 780054-01, 780054-07, 780053-04, 780053-01, 780054-04 |
| Category | PC-based Multifunction DAQ |
| Model | USB-6281 |
| Analog Inputs | 16 single-ended or 8 differential channels, 18-bits ADC resolution |
| Sample Rate (Single Channel) | 625 kS/s maximum |
| Sample Rate (Multiple Channels) | 500 kS/s maximum |
| Overvoltage Protection | ±25 V (device on), ±15 V (device off) |
| Input Current (Overvoltage) | ±25 mA maximum/AI pin |
| Input Bias Current | ±100 pA |
| Analog Outputs | 2 channels, 16-bits DAC resolution |
| Output Channel Update Rate | 2.86 MS/s maximum (one channel), 2.00 MS/s maximum per channel (both) |
| Timing Accuracy | 50 ppm |
| Digital I/O | 24 |
Question 1: What is the max sample rate for the USB-6281?
Answer 1: 625 kS/s for single channel.
Question 2: How many AI channels does the USB-6281 have?
Answer 2: 16 single-ended or 8 differential.
Question 3: What is the ADC resolution of USB-6281?
Answer 3: 18-bits.
Question 4: What is the overvoltage protection for USB-6281 when on?
Answer 4: ±25 V.
Question 5: How fast can the AO channels update on the USB-6281?
Answer 5: 2.86 MS/s for one channel.



