MAX391EPE

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The MAX391EPE is a preferred choice for specialized analog circuits requiring multiplexing, demultiplexing, or single-pole, double-throw (SPDT) switching capability. This device combines two of the MAX391E, a 16-channel multiplexer/demultiplexer, with four SPST switches (four dual SPDT switches). These four SPDT switches in combination with the multiplexer and demultiplexer provide the user with a flexible array of analog switching applications.

In the application field, MAX391EPE is widely used in numerous industrial, consumer, automotive, and military applications, as it is an ideal device for managing analog signals. These applications include filling and druid systems, mechanical and optical transducers, automotive instrumentation, audio systems, and AC/DC switching circuits.

This device is available in the 8-pin narrow SOIC and TSSOP packages, and features a common-mode voltage input range of (VCC-2.0V) to (VCC+2.0V), making it a great fit for many specialized analog circuitry needs.

The MAX391EPE incorporates multiplexer/demultiplexers with four SPST switches, as noted previously. Each multiplexer/demultiplexer acts as a selector for a wide variety of different applications, such as selecting among multiple inputs, including a reference voltage and ground. The demultiplexer portion is used for output multiplexing, enabling the user to select one of sixteen addressed logic outputs.

The four SPST switches incorporated into the MAX391EPE provide single-pole, double-throw functionality. SPST switches are single throw and double pole switches, which means they only require a single input to switch either two outputs or a single output back and forth.

The MAX391EPE uses charge injection technology. This technology allows the device to operate at low voltage and low power, making it more efficient and ideal for use in battery operated applications. In addition, its switching time is much faster than a mechanical relay, so it can be used in a wide range of applications where speed is a necessity.

The MAX391EPE has been designed with a high resistance between switch contacts and low leakage current across the switches. This ensures that any charge injection is minimized and the switching is more reliable.

In total, the MAX391EPE offers great flexibility and reliability as an analog switch for various specialized applications. Thanks to its multiplexer/demultiplexer and SPST switch composition, the device is optimal for applications requiring multiple inputs mirrored to a single output and/or vice versa, as well as two outputs connected to two separate inputs. The MAX391EPE also provides the user with a low voltage, low power switching solution, as well as fast switching times, making it a viable choice for a variety of applications.

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