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" Very responsive and helpful, competitive pricing. Good source! "
July 2025
779958-01
779958-01, 16-Bit Resolution, 1.25 MS/s, 1,920 µV, Multifunction I/O Device
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments 779958-01 Multifunction I/O Device
The National Instruments 779958-01 is a USB-6255 multifunction Data Acquisition (DAQ) device designed for a wide range of measurement, testing, and control applications. The unit features an enclosed screw-terminal module and connects to a host computer through USB 2.0. It supports 80 single-ended or 40 differential analog input channels with 16-bit resolution and sampling rates up to 1.25 MS/s. The device also includes a 4095-sample FIFO buffer for temporary data storage during acquisition.
In addition to its analog inputs, the 779958-01 provides two analog output channels with update rates of up to 2.86 MS/s. It also includes 24 programmable digital I/O lines and two 32-bit counters/timers for event counting, timing, and other measurement tasks.
The 779958-01 does not support simultaneous sampling across its analog input channels, but it does provide both analog and digital triggering for capturing data in response to external events. These capabilities make it suitable for applications such as laboratory automation, research and development, product validation, and production testing. Its high channel count is particularly useful for monitoring multiple process variables and generating control signals from a single DAQ device.
The unit can be programmed using NI-DAQmx drivers with software such as LabVIEW, C, and Python. Its USB interface provides a straightforward connection to benchtop test equipment and field systems without requiring a dedicated data acquisition chassis. The combination of high-speed analog outputs and flexible triggering also makes the 779958-01 suitable for waveform generation, frequency-response testing, and closed-loop control applications.
The National Instruments 779958-01 can also be used with SCC and SCXI signal-conditioning systems to support a variety of sensor inputs, including thermocouples, strain gauges, and high-voltage measurements. These signal-conditioning options allow the DAQ system to be adapted to different test requirements without replacing the main acquisition hardware.
With its rugged enclosure, screw-terminal connections, high channel density, and flexible I/O capabilities, the 779958-01 is well suited to industrial measurement, process monitoring, automation, and production validation applications.
| Model | 779958-01 |
|---|---|
| Part Number | 779958-01 |
| Part Type | Multifunction USB Data Acquisition (DAQ) Device |
| Bus Interface | USB 2.0 |
| Analog Input Channels | 80 Single-Ended / 40 Differential |
| Analog Input Resolution | 16-Bit |
| Maximum Analog Input Sample Rate | 1.25 MS/s |
| Analog Input Absolute Accuracy | 1,920 µV |
| Analog Output | 2 Channels at 2.86 MS/s Maximum Update Rate |
| Power Input (US) | 120VAC |
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