MAX4501EXK-T

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Analog switches, multiplexers, and demultiplexers are components used to route and divide signals. The MAX4501EXK-T is an innovative chip developed by Maxim Integrated which can accomplish all of these switch-based tasks and more. The device is the industry’s first two-channel, single-pole, double-throw (SPDT) analog switch, characterized by an incredibly low power dissipation and on-resistance. It can achieve a low off-state leakage current irrespective of whether VDD is above or below VSS.

Applications

The MAX4501EXK-T is available for a wide range of consumer and portable applications. Some examples include portable instrumentation, consumer systems, and medical devices. The device can be used to connect and disconnect analog signals, ground loops, and high-current paths as required. It can be used as a simple switch, multiplexer, demultiplexer, or distributor with versatile control logic.

Working Principle

This device operates by having two independent switch units, each with two pins. The device’s control logic allows for a range of pole-throw combinations, enabling it to be used as a simple SPDT switch, multiplexer, demultiplexer, or distributor. Each switch unit operates independently, with each having its own on-resistance and off-state leakage current.

The main worker for this device is the Select pin (SEL) which is an active-LOW logic input pin. When this pin is HIGH, the first switch unit is ON, connecting its first pin to its second pin. When it is LOW, the first switch unit is OFF and disconnected. Similarly, the other switch unit follows the same function when the SEL pin is HIGH and LOW.

The MAX4501EXK-T provides a high level of ESD protection and is easy to use. It consumes very low power, allowing it to be used in battery-powered portable applications without drawing too much energy. The device is also highly reliable and maintains its performance over a temperature range of -40°C to +85°C.

Conclusion

The MAX4501EXK-T is an industry-leading device for low-power analog switches, multiplexers, and demultiplexers. Its innovative design and low-power capabilities make it an ideal choice for a wide range of applications, including portable instrumentation, consumer systems, and medical devices. The device is easy to use and provides excellent ESD protection, making it a reliable and cost-effective choice for any kind of signal routing and distribution application.

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