The NI Circuit Design Suite is a software package developed by National Instruments that provides tools for designing and simulating electronic circuits. It allows engineers to create circuit schematics, analyze performance, and optimize designs using various simulation techniques. The suite supports both analog and digital circuit design, making it versatile for different applications. In addition to circuit design, the NI Circuit Design Suite integrates with other NI products, enabling seamless testing and measurement. Users can leverage built-in libraries of components and models, facilitating faster design processes. This suite is particularly useful for engineers in research, development, and education.