MAX4587EUB+

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Interface - Analog Switches - Special Purpose

The MAX4587EUB+ is a 3.2V, a quad single-pole double throw analog switch with a separate enable/disable control. It is usually utilized as an analog switch to cut off a circuit without a latch-up problem. The chip’s low control voltage and its ability to minimize charge injection gives it a wide range of applications.

Application Field:

The wide range of application of the MAX4587EUB+ makes it suitable for different fields such as:

• Consumer electronics, such as musical instruments, DVD players and consumer audio.
• Communication, for switching analog audio signals in terminals, short distance wireless communication links, cellular networks and back-plane applications.
• Industrial applications, such as unlocking switches, motor control, switches for power setup, etc.
• Medical and test equipment, such as electronic patient monitoring, medical imaging, etc.

Working Principle:

The MAX4587EUB+ is a CMOS switch with four independent on-board switches. It works on a 3.2V rail and has an input signal range of 0.6V to 2.7V. When the enable signal is active and the signal voltage is within the input range, the switches turns ON.

The MAX4587EUB+ has a low signal-on current, typically 10uA, which helps it preserve signal integrity and noise. The ON resistance of the transition is fabricated over a wide range, typically between 4 and 10 ohms.

The chip has an internal protection circuitry that guards against short circuits and over temperature conditions. In such cases the internal operation logic prevents the chip from damaging itself or external hardware connected to it.

Another feature of this chip is its low charge injection. This eliminates the need for external decoupling capacitors and helps it to maintain high linearity, switching transient suppression and very low signal distortion.

The Quad Single-Pole Double-Throw (SPDT) switches make the MAX4587EUB+ suitable for audio signals, instrumentation and medical systems. The low jitter between switch actuation and its low power consumption makes it an ideal choice when creating multiplexed signals or analog signals.

Conclusion:

The MAX4587EUB+ is a high performance, low power, quad single-pole double throw analog switch with a separate control. Its wide application field makes it a useful component for consumer electronics, communication, industrial and medical applications. Its low on resistance and high linearity help maintain signal integrity and its very low charge injection provides the chip with extra protection. All these features in combination with its low power consumption and built in protection make the MAX4587EUB+ the perfect choice for audio signals, instrumentation and medical systems.

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