74HC4351N,652

The 74HC4351N,652 are commonly used, high-performance analog multiplexers and switches, based on CMOS/BiMOS based technology, from the Interface – Analog Switches, Multiplexers, Demultiplexers family.

Applications

They are very useful in a wide variety of analog signal manipulation applications. Depending on the design of the circuit, they can be used to process, amplify, or route analog signals among different sections of a printed circuit board or to switch the control signals and provide them to another circuit feature. They can also be used to send analog data to an external display device, like an LED or LCD display.They are also used in combination with digital logic circuits to provide added functionality. For example, they can provide voltage and/or current level translation between two digital logic systems, or to switch from one system to another.

Working Principle

74HC4351N,652 are CMOS-based analog multiplexers. To understand their working principle, it is important to understand the structure of CMOS devices. CMOS is a type of metal-oxide-semiconductor (MOS) technology, which combines both metal and semiconductor materials to form a type of integrated circuit. At the heart of this technology is the MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor), which is the building block of a CMOS device. The MOSFET is a three-terminal device, with a source, a drain, and a gate terminal. The gate terminal is used to electrically control the flow of current through the MOSFET. When the gate terminal (supplied with a control signal) is “high”, the MOSFET is said to be “on”, and it will allow current to flow between the source and drain. When it is “low,” the MOSFET is said to be “off” and it will not allow current to pass between the source and drain. This is the basic principle of the CMOS technology.

In the case of 74HC4351N,652, these multiplexers consist of several MOSFETs arranged in an array. Each individual MOSFET is linked to an input pin, which is used to connect to one of the several selectable analog signals. These multiplexers also contain a control pin, which is used to select which of the signals is to be transferred to the output pin. The output pin is connected to the channel whose input pin has been chosen. When the control pin is activated, the MOSFET corresponding to the corresponding channel will be closed, and the desired signal will be transferred to the output pin. This is how the 74HC4351N,652 multiplexers work to manipulate analog inputs and transfer them to the output pin.

Conclusion

The 74HC4351N,652 are high-performance analog multiplexers and switches from the Interface – Analog Switches, Multiplexers, Demultiplexers family. These devices are based on CMOS-based technology and can be used for a variety of signal manipulation and control applications. The working principle of these multiplexers is based on the functioning of individual MOSFETs, which are used to route analog signals from the input to the output pin.