MAX4614EPD

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Interface - Analog Switches, Multiplexers, Demultiplexers

The MAX4614EPD is an ultra-precise and low-voltage Analog Switch with Double-Pole/Double-Throw (DPDT) architecture from Maxim Integrated which has a wide range of applications in the field of Automotive, Communications, Computing, Industrial, and Consumer/Appliance sectors. The MAX4614EPD models in the family have both Positive and Negative voltage supplies, allowing for differential switching using 2 independent switches integrated into the same package. This excellent part offers some of the best features available in its class, including a tight match between the two switch channels and an extremely-low ground bounce, making it an ideal choice for precision applications with low-voltage requirements.

Features and Benefits:

• Low On-resistance: With a minimum On-resistance of 150Ω, the MAX4614EPD can operate reliably at very low nominal voltages.
• Low Off-leakage Current: The MAX4614EPD offers a very low ICCS of 100nA, minimizing the effect of the part on its application.
• Precise Match between Switch Channels: With a typical match of 1.5Ω between channels, the MAX4614EPD minimizes the effect of link switching for applications that require high accuracy.
• Low Ground Bounce: The MAX4614EPD has an extremely-low ground bounce of 1mV, providing excellent noise immunity to its application.

Applications:

The MAX4614EPD is ideal for use in precision applications where low voltage, low current leakage, low cross-talk and low ground bounce are required. Its primary applications include switching measurements and controls in automotive, communications, computing and consumer/appliance markets. In addition, its excellent match between the two switch channels makes it ideal for applications that require high accuracy, such as precision resistive-sensing and control, multiplexers and demultiplexers, instrumentation and medical systems.

Working Principle:

The MAX4614EPD works using a DPDT architecture. The part consists of two switch channels – each equipped with independent Poles and Throws. The pole of each channel is connected to a fixed terminal (common) on one side, and the throw of each channel is connected to a different external terminal. The external terminals can be connected to either of the two sources that have been connected to the fixed terminals, allowing for differential switching between the two sources.

A logic signal is used to control the switch. Applying the logic signal to the control input will cause the switch to open or close, depending on the voltage level of the control input. When the control input is 0V, the switch will be closed, and when the control input is 5V, the switch will be open. The MAX4614EPD also features an Enable signal which can be used to open or close both switch channels at once.

The MAX4614EPD is designed to operate at low voltages, making it an excellent choice for precision applications where high accuracy is required. Its match between the switch channels and its low ground bounce make it a particularly good choice for applications such as multiplexers and demultiplexers, instrumentation and medical systems.

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