Description
The Multifunction I/O Device by National Instruments comes with an array of part numbers including 779974-01, 779973-02, 779973-04, 779973-01, and 779974-04. This device is highly versatile and is designed to cater to a wide range of applications requiring precise data acquisition and control.
It boasts 80 analog input channels, which can be configured as either 80 single-ended or 40 differential channels, providing flexibility in connection and measurement types. The device is equipped with a 16-bit ADC resolution, ensuring high precision in data conversion from analog to digital form. Furthermore, it offers a maximum sample rate of 250 kS/s (kilo-samples per second), whether operating in single or multiple channel modes, making it suitable for capturing fast-changing signals.
The timing accuracy of this device is maintained at 50 ppm of the sample rate, which guarantees precise timing for data acquisition tasks. To achieve optimal performance, it is recommended to allow a warm-up time of 30 minutes before commencing operations. Additionally, to maintain its high level of accuracy and reliability, calibration is advised at least once a year.
It supports various input ranges, including ±0.2V, ±1V, ±5V, and ±10V, and can handle a maximum working voltage of ±11V on the analog inputs. The device is also designed with a sizable Input FIFO Size of 4,095 samples, which aids in buffering data to prevent loss during high-speed data acquisition.
Furthermore, this multifunction I/O device comes with overvoltage protection for all analog input and sense channels, ensuring the device and connected equipment are safeguarded against accidental voltage spikes. In conditions of overvoltage, the input current is limited to ±20 mA maximum, adding an extra layer of protection against
| Specification | Detail |
|---|---|
| Part Numbers | 779974-01, 779973-02, 779973-04, 779973-01, 779974-04 |
| Device 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 Frequency | At least once a year |
| Input Ranges | ±0.2V, ±1V, ±5V, ±10V |
| Maximum Working Voltage | ±11V (analog inputs) |
| Input FIFO Size | 4,095 samples |
| Overvoltage Protection | Yes, for all analog input and sense channels |
| Input Current (Overvoltage Condition) | ±20 mA maximum |
| Analog
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