Description
The National Instruments USB-6281 is a PC-based multifunction Data Acquisition (DAQ) device that offers a wide range of features for various applications. This device comes under the model number USB-6281 and falls within the category of PC-based Multifunction DAQ. It supports multiple part numbers including 780054-01, 780054-07, 780053-04, 780053-01, and 780054-04.
When it comes to software compatibility, the USB-6281 is designed to work seamlessly with NI-DAQmx drivers, ensuring easy integration with National Instruments software solutions. The device offers flexibility in data acquisition with 16 single-ended or 8 differential input channels, making it suitable for a wide range of measurement tasks.
The USB-6281 boasts an 18-bit ADC resolution, providing high precision in measurements. It can achieve a maximum single channel sample rate of 625 kS/s, while for multiple channels, the maximum sample rate is 500 kS/s. This high-speed data acquisition capability makes it ideal for capturing fast transient signals.
Regarding safety, the USB-6281 offers robust overvoltage protection. When the device is on, it can withstand voltages up to ±25 V, and when off, up to ±15 V. Additionally, the input current limit for overvoltage conditions is set to ±25 mA max per AI pin, with an input bias current of ±100 pA, protecting the device and connected circuits from damage due to excessive voltage or current.
The device also features 2 analog output channels with a 16-bit DAC resolution. It is capable of updating one output channel at a maximum rate of 2.86 MS/s, and when both channels are used, the update rate is 2.00 MS/s per channel maximum. This high-speed output capability allows for precise control signals to be generated, suitable for driving actuators or for use in control loop applications.
Lastly, the USB-6281 ensures accurate timing
| Specification | Details |
|---|---|
| Manufacturer | National Instruments |
| Model | USB-6281 |
| Category | PC-based Multifunction DAQ |
| Part Numbers | 780054-01, 780054-07, 780053-04, 780053-01, 780054-04 |
| Driver Compatibility | NI-DAQmx |
| Input Channels | 16 single-ended or 8 differential |
| ADC Resolution | 18-bits |
| Single Channel Sample Rate | 625 kS/s max |
| Multiple Channels Sample Rate | 500 kS/s max |
| Overvoltage Protection (Device On) | ±25 V |
| Overvoltage Protection (Device Off) | ±15 V |
| Input Current (Overvoltage) | ±25 mA max/AI pin |
| Input Bias Current | ±100 pA |
| Analog Output Channels | 2 |
| DAC Resolution | 16-bits |
| Output Channel Update Rate (1 channel) | 2.86 MS/s max |
| Output Channels Update Rate (2 channels) | 2.00 MS/s per channel max |
| Timing Accuracy | 50 ppm |
Question 1: What is the max ADC resolution of the USB-6281?
Answer 1: 18-bit
Question 2: What is the max sample rate for single channel on USB-6281?
Answer 2: 625 kS/s
Question 3: How many analog input channels does USB-6281 have?
Answer 3: 16 single-ended or 8 differential
Question 4: What is the max voltage the USB-6281 can withstand when on?
Answer 4: ±25 V
Question 5: What software is the USB-6281 compatible with?
Answer 5: NI-DAQmx drivers
