ONLINE TOOLS HOME IN ON ANALOG DESIGN - ANALOG DESIGN GETS EASIER AND MORE CONVENIENT, THANKS TO FREE WEB APPLICATIONS AND DOWNLOADABLE TOOLS

摘要

Since the advent of circuits, electronics engineers have used various implementations of simulation tools. These tools are especially important in analog design, for which specifications may span many decades of magnitude, and changing one component can have unknown effects on other - perhaps unrelated - components. Analog systems are also becoming more complex: Switching regulators once operated at 20 kHz, but modern chips can work at 4 or even 8 MHz. Modern signal paths also have stringent noise and accuracy requirements. Interface signals clock data at gigahertz frequencies. These signals can interact or be susceptible to interference from both internal and external sources, causing circuits to behave unreliably. These signals may also radiate excessive noise, preventing your product from passing FCC (Federal Communications Commission) certification.