MAX4743ELA+T

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The MAX4743ELA+T is an octal SPST analog switch with integrated low-leakage, low-bounce ESD protection diodes. The integrated ESD protection diodes make it well-suited for applications that require reliable protection from electrostatic-discharge (ESD) events. Its wide signal range of -18V/+18V with 80pA/V maximum leakage and 1nJ typical switch bounce make it suitable for a wide range of signal processing tasks. It can be used in applications such as multiplexers, demultiplexers, and power management.

Applications

The MAX4743ELA+T is suitable for use in a variety of applications that require reliable switching of analog signals. For example, it can be used in power supplies and lighting control systems, as well as in other applications such as:

• Audio switching
• Analog multiplexer and demultiplexer
• Battery measurement systems
• Buffer and line driver circuits
• Strain and load sensors
• Graphic Equalizers

Working Principle

The MAX4743ELA+T is a single-pole double-throw analogue switch. It contains 8 individual channels, each of which can be configured to switch one or more of its analog signals between two output ports. Each SPST switch is connected together and is driven by a single logic signal pin. When an input logic level is applied, the corresponding switch will close and the signal will be connected between two output ports.

Each switch has an on-resistance of 1.3 ohms typical. The wide voltage range of -18V/+18V and low current leakage of 80pA/V makes the MAX4743ELA+T suitable for a variety of analog signal switching applications. Furthermore, it has low signal bounce of 1nJ, which ensures reliable operation in signal switching applications.

The MAX4743ELA+T is designed for low power operation. It requires a typical power supply of 3V and a maximum of 5.5V. It also features electrostatic discharge (ESD) protection diodes, which make it suitable for handheld- and low-voltage applications. Furthermore, the improved overshoot and undershoot of the MAX4743ELA+T make it an ideal choice for signal switching applications that require reliable and low-power switch operation.

Conclusion

The MAX4743ELA+T is a single-pole double-throw analogue switch with integrated ESD protection diodes. Its wide signal range of -18V/+18V and low leakage current of 80pA/V makes it suitable for a variety of signal processing tasks. In addition, its low signal bounce of 1nJ ensures reliable operation. Its low power operation and improved overshoot and undershoot performance make the MAX4743ELA+T an ideal choice for a broad range of analog signal switching applications.

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