MAX388EPN

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MAX388EPN is an interface product on the Analog Switches, Multiplexers, Demultiplexers market. It is a low on-resistance, full-featured, low-voltage dual Analog Multiplexer (MUX)/Port Expander, which has advanced channel-bias current-gain-setting, overvoltage and hot-swap protection capabilities. By using this device customer can control the analog or digital signals direction and gain control automatically. This added feature allows signal input range compensating, which makes this MUX suitable for applications where the signal voltages swings vary.

MAX388EPN is designed for applications that require multiplexers and analog signal multiplexers/port expansion, such as network switch and router, and digital signal switching applications. Its core features include high-speed, low on-resistance and low input capacitance switching. It has a maximum on-resistance of 0.3 ohms, with a typical input capacitance of 0.6pF, which ensures fast switch traversal.

This device is also equipped with overvoltage protection and hot-swap protection capabilities. It has a guaranteed break before make switching time of 2 ns and an LVCC breakdown voltage of 15 V. Its internal diodes are designed to protect its inputs and outputs from overvoltage and hot-swap situations.

The MAX388EPN has four operational modes (see Figure 1): manual gain control, dual gain control, low-pass filter, and high-pass filter. By setting the switching points of the four operational modes, the channelsbiased current can be kept in reach automatic gain setting range. This feature makes this MUX suitable for applications where signal voltages swings is varied.

The MAX388EPN includes a low voltage differential signaling (LVDS) interface to the host system for communication and control. This allows for reconfiguration of the Serial Peripheral Interface (SPI) interface for the host to perform port direction, port configuration and other functions.

The MAX388EPN has an operating temperature range of -40 to +85 degrees Celsius. This multiplexer is available in a wide variety of packages, including a 0.5 mm pitch 36-pin TQFN package. It is characterized for operation from a single 2.5-V to 3.3-V supply and includes two SPI Interfaces.

Overall, MAX388EPN is a reliable and feature-rich Analog Multiplexer (MUX) for a range of applications that require port expansion, switching and other features. Its features and operational modes make it suitable for applications where the signal voltages swings are varied. Its LVDS interface and SPI interface make it easier for the host system to reconfigure its interface for port direction, port configuration and more.

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