ISL54208IRZ

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ISL54208IRZ

ISL54208IRZ is an analog switch in the family of special purpose devices from Intersil Corporation. It is designed for use in applications that require multiple control points with optimized signal performance.

Based on the Intersil SPT cell, the ISL54208IRZ combines the world\'s lowest OFF resistance with the features of fast switching, high bandwidth, low power dissipation, and reliable performance. It is ideal for precision data routing, video switching, and other critical signal applications. The device incorporates four independently controlled single-pole/single throw (SPST) switches.

Application Fields

This device is typically used in a variety of control applications such as data communications, video and imaging, and audio switching due to its high performance and low power consumption. It is an excellent replacement for electromechanical relays, as it eliminates the need for complex mechanics and reduces size and power consumption.

The most common applications for the ISL54208IRZ are data communication, video, and audio routing. The device is capable of switching digital and analog signals at up to 10 MHz clock frequency. It can also be used as a high-side switch for automotive applications. Additionally, it can be used for instrumentation systems, component testing rigs, and data acquisition.

Working Principle

The ISL54208IRZ operates based on the Intersil Smart Power Technology (SPT) cell, a custom CMOS cell designed for low power and low resistance. The device features a signal path that is formed from two PMOS transistors and two NMOS transistors in series. When a gate voltage is applied on any of the four switch pairs, charge is transferred from the drain terminal to the source terminal, thus closing the circuit.

The integrated circuit also includes four power supply pins (1V to 5V) in order to ensure that it can be used with any existing power supplies. Additionally, the circuit includes an Active Low Input (ALI) pin, which allows the device to be used in both 3- and 4-wire interface applications. The ALI pin can be used to control both the Enable pin and the High Impedance pin.

The active switches of the device are typically operated with digital signals of varying frequencies, and the device can be used for both low- and high-speed switching applications. The device also features an Open Source Output (OSO) logic pin, which enables the output state of the device to be monitored throughout the switching process.

Conclusion

The ISL54208IRZ from Intersil Corporation is a special purpose device designed for high speed and low power applications. This device combines the world\'s lowest off resistance with a fast switching rate and high bandwidth, making it suitable for a wide variety of data routing, audio and video switching applications. The device includes four independently controlled single-pole/single throw switches, as well as an Active Low Input and an Open Source Output logic pin to provide functionality flexibility.

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