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July 2025
779974-04
NI 779974-04, 16-Bit Resolution, USB-6225 USB Multifunction I/O Device
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free Domestic Ground Shipping
✔ 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 779974-04 USB Multifunction I/O Device
The National Instruments 779974-04 is a multifunction data acquisition device based on the USB-6225 M Series platform. This bus-powered USB device combines high-channel-count analog and digital I/O with built-in timing and triggering capabilities, making it suitable for a wide range of measurement, monitoring, and testing applications. The 779974-04 is configured for European 240 V power standards.
The device provides 80 single-ended or 40 differential analog input channels with 16-bit resolution and sampling rates of up to 250 kS/s. Four selectable input ranges from ±200 mV to ±10 V allow the analog inputs to accommodate a variety of signal levels. In addition, the 779974-04 includes two analog output channels, 24 digital I/O lines, and two 32-bit counters/timers. Digital triggering provides precise control over when measurements begin, making it useful for applications that require coordinated or synchronized data collection.
The analog inputs can handle a maximum working voltage of ±11 V, while a 4,095-sample input FIFO helps manage acquired data and maintain reliable operation during data collection. The device is powered through its USB connection, eliminating the need for a separate external power supply and making it convenient for both benchtop and portable applications.
With its high channel count and flexible input ranges, the 779974-04 is well suited to laboratory automation, research and design verification, manufacturing tests, environmental monitoring, component characterization, and production-line testing. Its multiple input ranges allow many sensors to be connected directly, reducing the need for additional signal-conditioning equipment in simpler measurement setups.
For applications involving higher-voltage signals, low-level measurements, or specialized sensors and transducers, the 779974-04 can be expanded with SCC or SCXI signal-conditioning modules. These modules provide additional signal conditioning and help adapt the device to more specialized measurement requirements.
NI-DAQmx software is used to configure and program the device and supports a variety of development environments. Combined with the USB interface and built-in digital triggering, it provides a straightforward way to integrate the module into custom measurement and automated test systems.
Although the 779974-04 is a legacy product and is no longer manufactured, it remains useful in existing systems that require a reliable, high-channel-count data acquisition solution. Its combination of numerous analog and digital channels, flexible signal ranges, timing functions, and USB connectivity makes it a practical choice for a variety of data acquisition and control applications.
| Model | 779974-04 |
|---|---|
| Part Number | 779974-04 |
| Part Type | M Series Multifunction DAQ |
| Analog Inputs | 80 SE / 40 Diff |
| ADC Resolution | 16-bit |
| Max Sample Rate | 250 kS/s |
| Analog Outputs | 2 AO |
| Digital I/O | 24 DIO lines |
| Counters/Timers | 2 x 32-bit |
| Input Ranges | ±200mV to ±10V (4 ranges) |
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