Description
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The USB-6225 is a multifunction I/O device manufactured by National Instruments. This device features a wide array of specifications designed to meet various data acquisition needs. It comes with multiple part numbers, including 779974-01, 779973-02, 779973-04, 779973-01, and 779974-04, ensuring flexibility and compatibility for different setups.
With its 80 analog input channels, which can be configured as either 80 single-ended channels or 40 differential channels, the USB-6225 offers extensive data collection capabilities. The analog-to-digital conversion (ADC) resolution is rated at 16-bit, providing high accuracy in measurements. Additionally, it supports a maximum sample rate of 250 kS/s for both single and multiple channels, with a timing accuracy of 50 ppm of the sample rate, ensuring precise data capture and synchronization.
The device requires a recommended warm-up time of 30 minutes for optimal performance and needs to be calibrated at least once a year to maintain its accuracy. Users can select from various input ranges, including ±0.2V, ±1V, ±5V, and ±10V, with a maximum working voltage for analog inputs (AI) at ±11V. The input FIFO size is substantial, at 4,095 samples, complemented by overvoltage protection for the analog inputs at ±20 mA max, safeguarding the device against potential damage.
The USB-6225 also boasts 2 analog output channels with a digital-to-analog conversion (DAC) resolution of 16-bit. The maximum update rate for analog outputs (AO) is impressive, reaching up to 833 kS/s for one channel and 740 kS/s for two channels. The output range for analog outputs is ±10 V, with an output impedance of 0.2 Ω, ensuring reliable and stable signal transmission. Additionally, the device is equipped with overdrive protection, further enhancing its durability and longevity in demanding environments.
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| Specification | Detail |
|---|---|
| Part Numbers | 779974-01, 779973-02, 779973-04, 779973-01, 779974-04 |
| Model | USB-6225 |
| Type | 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 | 250 kS/s (single and multiple channels) |
| 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 (AI) | ±11V |
| Input FIFO Size | 4,095 samples |
| Overvoltage Protection (AI) | ±20 mA max |
| Analog Output Channels | 2 |
| DAC Resolution (AO) | 16-bit |
| Maximum Update Rate (AO) | 833 kS/s (one channel), 740 kS/s (two channels) |
| Output Range (AO) | ±10 V |
| Output Impedance | 0.2 Ω |
| Overdrive Protection (
Question 1: What is the ADC resolution of the USB-6225? Question 2: How many AI channels does the USB-6225 have? Question 3: What is the max sample rate for the USB-6225? Question 4: What is the warm-up time recommended for USB-6225? Question 5: What is the max working voltage for AI on USB-6225? |
