Analog Switches are ICs designed to switch Analog signals via digital control. The internal structure of these devices typically consists of a number of logic control gates interfaced with transistor stages used to control the flow of Analog signals. The CMOS 4066B quad bilateral switch uses a single supply voltage from 3 to 15 V. It can switch Analog or digital signals within _7.5 V and has a maximum power dissipation of around 700 mW.