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.

The USB-6225 is available to be calibrated. While the recommended calibration period for individual parts varies, most parts should be calibrated either annually or every two years to ensure accuracy. If you need the USB-6225 calibrated, Apex Waves provides options. We offer high-quality NIST accredited calibrations through a 3rd party, with an average turnaround time of 1 to 2 weeks. When you order the USB-6225 with us, you can request basic (unaccredited) in-house calibration that will calibrate the part to the manufacturer specifications prior to being shipped. Call or email us today for more information about calibrating the USB-6225!