MC74HCT4066ADR2G

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The MC74HCT4066ADR2G is an analog switch component typically used in low-cost video, audio and general purpose switching applications. It is one of a family of analog switches, multiplexers, demultiplexers available from many manufacturers.

The MC74HCT4066ADR2G offers an ideal low-power solution for constructing switching circuits, from simple source switching circuits to more complex multiplexers, controllers, and digital-to-analog and analog-to-digital converters. Switching inputs and outputs range from single-pole-single-throw (SPST) switches to multiplexers with superior performance for properly switched signals. Other features include active ON-OFF logic, low-voltage AC or DC switching, and different input and output logic families.

The MC74HCT4066ADR2G is a 6-channel analog switch component. It uses a dual switching technique that provides superior rates of charge transfer and superior speed performance. It performs the same functions as two-pole-four-throw (TPFT) switches, but with better charge transfer, faster speed and lower power consumption. It delivers low-power, high-speed response and is designed for the highest quality switching of audio, video and general-purpose signals.

Application Fields

The MC74HCT4066ADR2G is a versatile device with a wide range of applications. It is ideal for applications such as:

• Audio and video applications: switching signals on/off, high-bandwidth data routing, low-bandwidth signal routing, signal routing through multiplexers, and converting analog signals to digital and digital signals to analog.
• Switching ICs, opto-isolators, amplifiers and power regulators: switching between different logic, such as 3- to 5-volt logic families, and providing buffering between analog and digital signals.
• Signal routing in high-end equipment: voltage, current and temperature sensing, with multiplexing/demultiplexing in power management applications.
• High-precision switching applications: providing long-term, reliable signal isolation and signal routing for low-power, high-frequency circuits.

Working Principle

The MC74HCT4066ADR2G works similarly to a switching circuit using two SPST switches, but with better speed and charge transfer performance as well as lower power consumption. The MC74HCT4066ADR2G uses two independent switches, X and Y, to provide signal selection between two signal ports. The control logic inputs control the switching of X and Y. With X closed, signals can be switched between two ports. With X open, signals are blocked and the Y switch is applied to provide signal selection. When the switch is in the “ON” state, it connects the signal to the specified port and when the switch is in the “OFF” state, the signal is blocked.

The MC74HCT4066ADR2G is designed to switch bidirectional signals in either transfer or transistor mode. Transfer mode is designed for single pole/single throw switching of either analog or digital signals. Transistor mode is designed for complex signal switching involving both analog and digital signals. It is possible to switch multiple signals simultaneously between two signal ports with the MC74HCT4066ADR2G.

The MC74HCT4066ADR2G is designed to work with multiple intput and output signals. Its low-voltage, low-power switching performance makes it an ideal solution for many switching applications. Superior signal flow, signal-to-noise ratio and reliability make the MC74HCT4066ADR2G a good choice for applications that require signal control in audio and video systems, as well as general purpose switching.

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