Description
The multifunction I/O device, produced by National Instruments, comes with a variety of part numbers, including 779974-01, 779973-02, 779973-04, 779973-01, and 779974-04. This device is designed to handle complex data acquisition and control tasks efficiently.
It boasts 80 analog input channels, which can be configured as either 40 differential or 80 single-ended channels, providing flexibility in connecting a wide range of sensors. The device’s analog-to-digital conversion (ADC) is highly precise, with a 16-bit resolution, ensuring accurate data representation.
The maximum sample rate supported by the device is 250 kS/s, applicable for both single and multiple channel configurations. This high sample rate is complemented by a timing accuracy of 50 ppm of the sample rate, which guarantees precise timing for data acquisition tasks.
To achieve optimal performance, it is recommended that the device is warmed up for 30 minutes before use. Furthermore, to maintain accuracy and reliability, the device should undergo calibration at least once a year.
The input ranges supported by the device are ±0.2V, ±1V, ±5V, and ±10V, with a maximum working voltage for analog inputs of ±11V. This allows the device to accommodate a wide variety of signals from different sensors. Additionally, the device has an input FIFO size of 4,095 samples, enabling efficient data handling.
For protection against potential damage, the device includes overvoltage protection on all analog input and sense channels. In overvoltage conditions, the input current is limited to ±20 mA maximum, safeguarding the device and connected sensors.
| 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 (40 differential or 80 single-ended) |
| ADC Resolution | 16-bit |
| Maximum Sample Rate | 250 kS/s (single or multiple channels) |
| Timing Accuracy | 50 ppm of the 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 | ±11V (analog inputs) |
| Input FIFO Size | 4,095 samples |
| Overvoltage Protection | Yes (all analog input and sense channels) |
| Input Current (Overvoltage Condition) | ±20 mA maximum |
| Analog Output Channels |
