National Instruments PCI-6221 Multi functional data acquisition card module

National Instruments PCI-6221 Multi functional data acquisition card module

Specific parameters
Analog input: 16 single ended or 8 dual ended inputs, signal range up to ± 10V, resolution of 16 bits, data acquisition rate of 250kS/s.
Analog output: 2-channel analog output, precision of 12 bits, single channel output rate of 833kS/s, dual channel output rate of 740kS/s, output voltage range of ± 10V.
Digital I/O: With 24 digital input/output interfaces, the 68 pin version provides 8 related (clock) digital I/O channels, up to 1MHz; The 37 pin version provides 2 channels of related (clock) digital I/O.
Counter: Equipped with 2 built-in 32-bit counters and a 20MHz reference clock, it provides accurate time measurement and triggering functions.
Power supply: Bus power supply, signal environment is 3.3V or 5V.
Size: 4.2 inches x 6.1 inches.
Weight: 3.2 ounces.

Product Performance
High precision analog acquisition: With a 16 bit analog input resolution and an absolute accuracy of 3100uV, it can accurately capture small changes in analog signals, making it suitable for scenarios that require high accuracy in analog signals.
High speed data transmission: The analog input sampling speed reaches 250kS/s, and the analog output single channel rate is 833kS/s, which can meet some applications that have certain requirements for data acquisition and output speed, such as real-time signal processing and fast control systems.
Multi functional integration: integrating analog I/O, digital I/O, and counter functions, reducing the number of devices in the system, lowering system complexity, and facilitating comprehensive control and measurement for users.
Strong compatibility: Can be used with NI DAQmx drivers and configuration utilities, as well as NI SCC and SCXI signal conditioning platforms, making it easy to connect various sensors and external devices and expand system functionality.
Rich software support: equipped with NI DAQmx driver software and NI LabVIEW SignalExpress LE interactive data recording software, etc., convenient for users to configure devices, collect and analyze data, reduce development difficulty, and improve development efficiency.