MAX4663EAE

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A multiplexer or commonly called as MUX, is a device that selects one of many analog or digital signals with the help of a single input control, and in general, the circuit or logic network having such an arrangement is called multiplexing. The MAX4663EAE is one such multiplexer which offers exceptional low channel-to-channel match and low on resistance along with superior accuracy and fast switching speeds.

MAX4663EAE Application Field

The MAX4663EAE is a 8:1, 18-bit multiplexer which is used in wide variety of mixed-signal applications. It is especially suitable for data acquisition systems and touchscreens. This device is capable of switching digital signals with low distortion and low propensity to crosstalk within the same board.

It has the capability to directly interface with digital and analog signals. Also, it features a minimum on resistance of 7.2Ω which helps in minimizing any power consumption of the system which further in turn helps to get extended battery life.

The multiplexer is suitable for use in many portable applications, such as smartphones, tablets, and portable audio and video players.

MAX4663EAE Working Principle

The MAX4663EAE is an 8:1 multiplexer and it works by the switch chain of low pass filters which are configured in series. This is to ensure that no signals are passed from one channel to another channel thus avoiding any crosstalk.

The multiplexer includes two digital control pins that enable each of the 8 channels, respectively. By switching these pins, one can separately control and select each of the channels in the chain.

The buffer on the input of each of the 8 channels helps in driving the multiplexer with a high voltage swing. This helps in switching the channels which do not have a strong output swing.

This device has the capability of two different power modes, which are powered and high performance mode. In power mode, the power supply voltage is around 1.8V and in high performance mode, the supply voltage is around 2.5V. This helps in achieving various switching performances depending on the application requirement.

The maximum on resistance of the multiplexer is 7.2Ω which helps in reducing power consumption thus increasing the battery life in portable applications.

Conclusion

The MAX4663EAE is a single supply, 8:1, 18-bit CMOS multiplexer which has the capability to directly interface with digital and analog signals. It is suitable for use in many portable applications, like smartphones, tablets, and portable audio and video players. This device helps in maximizing the battery life of the portable devices by providing low channel-to-channel match and low on resistance along with superior accuracy and fast switching speeds.

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