Description
The USB-6221 is a PC-based Multifunction Data Acquisition (DAQ) device, designed to cater to a wide range of measurement and control applications. It is compatible with a variety of part numbers including 195959-02, 779808-01, 779808-02, 779808-03, 779808-04, 779808-06, and 779808-07, ensuring versatility across different setups.
This model boasts 16 analog inputs, which can also function as 8 differential inputs, providing flexibility in signal measurement. Additionally, it is equipped with 2 analog outputs, allowing for precise control and output capabilities. The USB-6221 offers a substantial sampling rate of 250 kS/s for analog inputs and 833 kS/s for analog outputs, ensuring accurate and timely data capture and generation.
With 24 digital I/O lines and a drive capacity of 24 mA for digital lines, this device is capable of handling complex digital communication and control tasks. It also includes two 32-bit timers, enhancing its functionality in time-sensitive applications.
The operating voltage range of ±10 volts, along with compatibility with signal conditioning modules such as SCC and SCXI, allows for flexible and scalable setups tailored to specific application needs. Software compatibility includes Windows Vista, Measurement Studio, and LabVIEW, offering a broad range of development options for users.
Among its special features, the USB-6221 includes Correlated DIO, PWM capability, and the NI-PGIA 2 amplifier for enhanced accuracy, making it a powerful tool for advanced measurement and control tasks. Despite being announced as obsolete by National Instruments, it remains available for purchase and repairs through Apex Waves, ensuring continued support for users of this versatile DAQ device.
| Specification | Details |
|---|---|
| Part Numbers | 195959-02, 779808-01, 779808-02, 779808-03, 779808-04, 779808-06, 779808-07 |
| Category | PC-based Multifunction DAQ |
| Model | USB-6221 |
| Analog Inputs | 16 (Can function as 8 differential inputs) |
| Analog Outputs | 2 |
| Sampling Rate (AI) | 250 kS/s |
| Sampling Rate (AO) | 833 kS/s |
| Digital I/O Lines | 24 |
| Drive Capacity (Digital Lines) | 24 mA |
| Timers | Two 32-bit |
| Operating Voltage Range | ±10 |
| Signal Conditioning Compatibility | SCC, SCXI |
| Software Compatibility | Windows Vista, Measurement Studio, LabVIEW |
| Special Features | Correlated DIO, PWM capability, NI-PGIA 2 amplifier for enhanced accuracy |
| Obsolete Status | Announced by National Instruments, available for purchase and repairs by Apex Waves |
Question 1: What is the sampling rate for AI on the USB-6221?
Answer 1: 250 kS/s for analog inputs.
Question 2: How many DIO lines does the USB-6221 have?
Answer 2: 24 digital I/O lines.
Question 3: Is the USB-6221 compatible with Windows Vista?
Answer 3: Yes, it’s compatible with Windows Vista.
Question 4: What special feature does the USB-6221 include for accuracy?
Answer 4: NI-PGIA 2 amplifier for enhanced accuracy.
Question 5: Can the USB-6221 still be purchased despite being obsolete?
Answer 5: Yes, available for purchase and repairs through Apex Waves.




