MAX4723EUA+

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Analog switches are active devices that allow signal paths to be disconnected from one signal source and connected to another. Multiplexers and demultiplexers are active digital switches for transferring between multiple input signal sources and output signal sinks. The MAX4723EUA+ application field and working principle are discussed below.

MAX4723EUA+ is an integrated two-channel, two-way analog multiplexer/demultiplexer. It operates from a single +4.5V to +16.5V power supply, and has a 5V supply voltage tolerance. The MAX4723EUA+ features low ON resistance of 17Ω, low switching noise of 0.134dB, a low ON-resistance flatness of 0.05%, a low propagation delay of 38ns, and a low threshold voltage of 0.7V. The MAX4723EUA+ creates two analog signal paths that can each be independently connected or disconnected with several selectable pins.

Application Field

The MAX4723EUA+ is ideal for applications such as cellular phones, multimedia equipment, motor amplifier controls, industrial automation, audio-visual equipment, and battery powered instruments. With its wide voltage supply range, low on-resistance flatness, and excellent switching noise, it is suitable for a wide range of applications.

Working Principle

The MAX4723EUA+ is made up of two circuitry, an N-channel MOSFET (metal-oxide semiconductor filed-effect transistor) multiplexer and a P-channel MOSFET demultiplexer. The N-channel MOSFET multiplexer circuit allows for the transfer of current from one input signal source to one output signal sink. The P-channel MOSFET demultiplexer circuit allows for the transfer of current from one output signal sink to one input signal source. The MAX4723EUA+ incorporates two sets of control pins that are used to select and eliminate the connection of one signal source to one signal sink. The control logic is implemented by two independent sets of two analog switches. The output of the N-channel MOSFET multiplexer is connected to the input of P-channel MOSFET demultiplexer and the control pins are used to control the ON or OFF state of these switches. The switches enable each of the two channels to be independently turned OFF or ON.

The MAX4723EUA+ has an excellent temperature range of -40°C to +125°C and can operate over a wide range of supply voltage without compromising performance. It provides excellent high speed switching performance with a low insertion loss and excellent hot-swap capability.

The MAX4723EUA+ is available in a small RoHS-compliant package and provides fast, low-noise switching performance with low power consumption. It is an ideal solution for applications such as cellular phones, multimedia equipment, motor amplifier control, industrial automation, audio-visual equipment, and battery-powered instruments.

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