Analog-circuit designs

特許 権利維持 Analogue circuits are typically harder to design, requiring more skill, than comparable digital systems.[citation needed] This is one of the main reasons why digital systems have become more common than analogue devices. An analogue circuit must be designed by hand, and the process is much less automated than for digital systems. However, if a digital electronic device is to interact with the real world, it will always need an analogue interface.