MAX391ESE+T

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The MAX391ESE+T is a low-voltage, low-power combination analog switch, multiplexer, and demultiplexer ideal for a variety of applications. It combines the functionality of a single analog switch, dual four-channel multiplexer and dual two-channel demultiplexer in one integrated circuit.

The general application field for the MAX391ESE+T includes the control of analog signals, sample and hold circuits, various sensor interfacing, switches for switching sensors, switches for power management, select buses and ADCs and DACs interfacing. The combination of features makes the device particularly useful for applications such as Piezo and Hall Effect sensors, RF receivers and digital potentiometers.

The MAX391ESE+T is a CMOS analog switch, multiplexer and demultiplexer ideal for a variety of applications. Its combination of features makes it suitable for applications such as Piezo and Hall Effect sensors, RF receivers and digital potentiometers.

The device features a low voltage range of 1.8V-4.5V, a low on-resistance of 5 ohms, and an input signal range of ±20V making it suitable for a wide range of applications.

The device is available as a dual 4-channel multiplexer, dual 2-channel demultiplexer, and a single pole single throw (SPST) analog switch. The 4-channel multiplexer and 2-channel demultiplexer are operated by four separate switches, two for the multiplexer and two for the demultiplexer. The SPST switch is a “break-before-make” device allowing the user to isolate the signals to prevent damage to the input device.

The MAX391ESE+T utilizes a proprietary Internal Limit Control (ILC) drive configuration to reduce the charge injection of the switch. The ILC drive is designed to provide maximum down time and migration resistance during the switching process. The device features an input voltage range of 0.5V to VDD – 0.5V, and current drive capability of 80mA, making it ideal for digital-to-analog conversion.

The device also includes protection from electrostatic discharge (ESD) and over-current damage, making it suitable for use in a wide range of environments. The MAX391 is available in an 8-pin PDSO and 8-pin MSOP packages, so it can be mounted on a variety of PCB configurations.

In conclusion, the MAX391ESE+T offers a versatile solution for a variety of analog signal applications due to its low-voltage, low-power combination analog switch, multiplexer, and demultiplexer design. The ILC drive decreases charge injection and provides maximum down time and migration resistance during switching. The device also features a wide signal range, ESD protection, and over-current protection. The MAX391ESE+T is available in an 8-pin PDSO and 8-pin MSOP packages, and can easily be integrated into most PCB configurations.

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