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July 2025
USB-6225
USB-6225, 80 Analog Input, 2 Analog Output, 24 Digital I/O, USB 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
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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 USB-6225 Multifunction I/O Device
The USB-6225 (Part Numbers: 779974-01, 779973-02, 779973-04, 779973-01, 779974-04) is a Multifunction I/O Device created by National Instruments. This device provides superior accuracy along with fast sampling rates. This device has 80 analog input channels. These channels can be used as 80 single-ended channels. The user can also utilize these channels as 40 differential channels. The NI USB-6225 offers 16-bit ADC resolution and the maximum sample rate of 250 kS/s for a single channel. For multiple channels, the maximum sample rate is also 250 kS/s. The timing accuracy of the input channels is 50 ppm of the sample rate. The device has a recommended warm-up time of 30 minutes, and should be calibrated at least once a year.
The USB 6225 NI has different input ranges. The input ranges include ±0.2V, ±1V, ±5V, and ±10V. The value of maximum working voltage for analog inputs of this device is ±11V. The input FIFO size for this device is 4,095 samples. The NI USB-6225 DAQ provides an overvoltage protection for all analog input channels and all sense channels. The input current of this instrument during the overvoltage condition is ±20 mA maximum.
The NI USB-6225 M Series DAQ has two analog output channels. Both channels provide 16 bit DAC resolution. The analog output channels have 16-bit monotonicity. The maximum update rate for one output channel is 833 kS/s. For both channels, the maximum update rate is 740 kS/s. The timing accuracy of the output channels is 50 ppm of the sample rate. The output range of this device is ±10 V. The output impedance is 0.2 Ω. The output channels provide an overdrive protection up to ±25 Volts.
The screw terminal fitted model of the device weighs 2 lb, and measures 10.5 x 6.73 x 1.75 in. in physical dimensions. Also, the Mass termination model weighs 2 lb, and has the physical dimensions: 7.4 x 6.73 x 1.75 in. The NI device has recommended operating and storage temperature ranges of 0 ºC to 45 ºC and -20 ºC to 70 ºC respectively, and a noncondensing humidity range of 10% RH to 90% RH.
| Model | USB-6225 |
|---|---|
| Manufacturer | National Instruments |
| Part Numbers | 779974-01, 779973-02, 779973-04, 779973-01, 779974-04 |
| Type | Multifunction I/O Device |
| Analog Input Channels | 80 Single-Ended or 40 Differential |
| Maximum Sample Rate | 250 kS/s |
| Analog Input Resolution | 16 Bits |
| Dimensions | Screw Terminal: 10.5 x 6.73 x 1.75 in.; Mass Termination: 7.4 x 6.73 x 1.75 in. |
| Weight | Screw Terminal: 2 lb 11 oz.; Mass Termination: 2 lb. |
| USB-6225 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for USB-6225:
National Instruments USB-6225 Frequently Asked Questions
Question: Why does the NI USB-6225 have five part numbers?
Answer: The NI USB-6225 has several variations with different front connector types and supported power input types. The first part number, 779974-01, has an SCSI front connector and United States 120 VAC power input. Part number 779973-02 has a Screw Terminal front connector and Swiss 220 VAC power input. Next, part number 779973-01 has a Screw Terminal front connector and United States 120 VAC power input. The following part number, 779974-04, has an SCSI front connector and Universal Euro 240 VAC power input. Finally, part number 779973-04 has a Screw Terminal front connector and a Universal Euro 240 VAC power input.
Question: What is the maximum update rate of the NI USB-6225?
Answer: The maximum update rate is 833 kS/s.
Question: Which analog output waveform modes are available on the NI USB-6225?
Answer: The following AO waveform modes are available on the DAQ: periodic waveform regeneration from host buffer including dynamic update, non-periodic waveform, and periodic waveform regeneration mode from onboard FIFO.
Question: How many counters/timers are on the device?
Answer: There are 2 (32-bit) counters/timers on the USB-6225.
USB-6225 PDF Manuals
DAQ-GETTING-STARTED-GUIDE-FOR-EXTERNALLY-POWERED-USB.PDF
DAQ-GETTING-STARTED-GUIDE-FOR-PCI-PCI-EXPRESS.PDF
DAQ-GETTING-STARTED-READ-ME-FIRST-NI-DAQMX-AND-DAQ-DEVICE-INSTALLATION-GUIDE.PDF
EXTERNALLY-POWERED-USB-M-SERIES-PANEL-MOUNTING-KIT-INSTALLATION-GUIDE.PDF
NI-6225-DEVICE-SPECIFICATIONS.PDF
NI-62XX-63XX-PINOUT-LABELS-FOR-THE-SCB-68-NOTE-TO-USERS.PDF
NI-62XX-63XX-PINOUT-LABELS-FOR-THE-SCB-68A-NOTE-TO-USERS.PDF
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