Product Overview
The National Instruments USB-6341 is a multifunction data acquisition device for USB based systems. It is part of the NI X Series DAQ family. The device provides 16 analog input channels, 2 analog output channels, 24 digital input and output lines, and 4 counters. It is designed for automated test, laboratory measurement, production verification, and control applications.
The USB-6341 connects to a laptop or desktop computer through USB and is supported by NI-DAQmx software. The device provides a balance of channel count, sampling rate, and mixed signal capability for general purpose test and measurement systems. Its USB form factor makes it convenient for bench top and portable setups.
Analog Input and Output
The USB-6341 provides 16 analog input channels with 16 bit resolution and a maximum sampling rate of 500 kS/s. The input range includes standard voltage levels such as plus or minus 10 V, plus or minus 5 V, and plus or minus 1 V. The analog input system supports hardware timed acquisition, triggering, and multi channel scanning.
The device includes two 16 bit analog output channels for control voltages, setpoints, and waveform generation. The analog output system supports hardware timed generation, which is useful for stimulus response testing and control applications. The combination of analog input and output allows the USB-6341 to handle mixed signal test tasks in one device.
Digital I/O and Counters
The USB-6341 provides 24 digital input and output lines for logic control, relay driving, and status monitoring. Four 32 bit counters are available for event counting, frequency measurement, pulse generation, and position sensing. The digital and counter functions can be synchronized with analog input and output operations through NI-DAQmx timing features.
This combination allows the device to coordinate mixed signal tasks, such as acquiring analog data while counting encoder pulses or generating a digital trigger. The device is suitable for test benches that require a combination of analog and digital signals in one USB instrument.
Software and USB Integration
The USB-6341 is supported by NI-DAQmx driver software. It can be programmed with LabVIEW, LabWindows/CVI, Measurement Studio, and other NI-DAQmx compatible development environments. NI-DAQmx provides configuration tools for channels, timing, triggering, and scaling. This helps reduce development time for data acquisition applications.
The device can be used with NI signal conditioning and accessory products to connect sensors and signals safely. It also supports synchronization with other DAQ devices and modular instruments through available timing and trigger lines. The USB interface provides a direct connection to the host computer without a chassis.
Typical Applications
Multifunction automated test systems
Analog data acquisition and waveform generation
Digital logic control and event counting
Laboratory measurement and prototype validation
Production test with mixed signal I/O
Portable and bench top USB DAQ systems
The USB-6341 provides 16 analog inputs, 2 analog outputs, 24 digital I/O lines, and 4 counters in an X Series USB DAQ device. Its NI-DAQmx support and mixed signal capability make it suitable for a wide range of test and measurement applications.
