MAX4801CQI+

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MAX4801CQI+ Introduction

MAX4801CQI+ is an analog switch that belongs to the MAX Analog Switches and Multiplexers, Demultiplexers group of interface products. It is manufactured by Maxim Integrated and is made to work with a wide range of single-pole, double-throw (SPDT) analog and digital switches. The switch is intended for use in applications such as signal routing, signal distribution, signal buffering, and audio-video switching.

MAX4801CQI+ Application Field

The MAX4801CQI+ can be used in a wide range of applications, including audio-video production and signal routing. It is also well-suited for signal distribution, signal buffering, and audio-video switching. This switch is also used in industrial and consumer electronics, as well as medical and consumer instrumentation.

MAX4801CQI+ Features

The MAX4801CQI+ features a low on-resistance of 1Ω max, high off-isolation of −55 dB max, and low charge injection of 2 pC max. It also provides a fast switch-on and switch-off time, with less than 45 ns switching time. Additionally, the switch has an integrated voltage regulator and thermal shutdown protection that can be triggered by junction temperature exceeding 113°C. The switch is also equipped with an enable control pin to enable or disable the circuit internally, and an integrated ESD protection that can withstand up to 10kV HBM.

MAX4801CQI+ Working Principle

MAX4801CQI+ switches are operated by an external logic input. When the logic is low, the switch is open, and the voltage potential across the two output terminals is the same. When the logic is high, the switch is closed, and the voltage potential across the two output terminals will be different. The switch is designed to ensure that the output voltage potential is not affected by any changes in the supply voltage or other external conditions, and the switch will stay open or closed until the logic is changed.

When the switch is open, the input bias current is low (e.g. 0.2 μA max). However, when the switch is closed, the input bias current increases. This increase is due to the presence of parasitic capacitance and the voltage differential across the terminals. The input bias current will then continue to decrease until it reaches its original level when the switch is opened.

The MAX4801CQI+ is designed to have a low power consumption and is capable of operating from a single +3V to +6V supply voltage. Additionally, it is available in compact packages (16-pin TSSOP and 24-pin QFN packages).

Conclusion

The MAX4801CQI+ is an analog switch that belongs to MAX\'s Analog Switches, Multiplexers, and Demultiplexers group of interface products. It is designed for applications such as signal routing, signal distribution, signal buffering, and audio-video switching. The switch is capable of operating from a single +3 V to +6V supply voltage and features a low on-resistance of 1Ω max, high off-isolation of -55 dB max, and low charge injection of 2 pC max. Additionally, it has an integrated voltage regulator and thermal shutdown protection, an enable control pin to enable or disable the circuit, and an integrated ESD protection that can withstand up to 10kV HBM.

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