The National Instruments USB-6356 is a versatile multifunction I/O device designed for high-performance data acquisition applications. It features a robust architecture with 8 differential analog input channels and 2 analog output channels, capable of a maximum sample rate of 1.25 MS/s per channel. This device supports 24 bidirectional digital I/O channels, all of which are programmable for input and output functions. Noteworthy is the input voltage protection across two pins, rated at ±20 V, with a typical resistor value of 50 kΩ, ensuring safe operation and data integrity. The digital output channels deliver a high current output of -24 mA for Port 0 and -16 mA for the other channels, with defined voltage thresholds for optimal performance: a minimum input high voltage of 2.2 V and maximum of 5.25 V.

The USB-6356 is equipped with a USB 2.0 bus connector, facilitating easy connectivity, while also supporting simultaneous sampling capabilities. It can stream values from memory at speeds ranging from 0 MHz to 10 MHz, and is optimized for both waveform generation and acquisition, with a capacity for 2,047 samples generated and 255 samples acquired, with performance that may vary depending on system and bus activity. The compact dimensions of the device, available in screw terminal and BNC formats, measure 10.4 × 6.8 × 1.4 in. and 8.0 × 7.3 × 2.7 in., respectively, and it weighs approximately 3 lb 3.4 oz. and 3 lb 6.2 oz. A comprehensive user and maintenance manual is available for download, and the device is backed by a 2-3 year warranty. For pricing, please consult a sales representative.