MAX968ESA+

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Linear-Comparators encompass a broad range of analog circuits used to compare the voltages of two or more signal sources. Generally, they take two inputs, a reference and a signal, and output either a high or a low depending on the relationship between the two. The MAX968ESA+ is a comparator which utilizes a Differential-input Multiplexer/Demultiplexer architecture. This application note will discuss its applications and working principle.

Applications

The MAX968ESA+ is ideal for designs that require both high-speed and low-power, such as power sequencers, switchboards, and audio systems. Its differential-input architecture allows it to accurately compare voltages over a wide range of input voltages and temperatures, making it well-suited for many audio and optical applications. Additionally, its low-power consumption makes it ideal for portable devices.

Working Principle

At its most basic, the MAX968ESA+ is a multiplexer/demultiplexer that allows its user to select one or even multiple channels of input signals. The multiplexer allows a single input signal to be selected and sent to a demultiplexer, which then outputs a signal based on the comparison of the two inputs.

The MAX968ESA+ is designed to be used as a differential comparator. This means that two input signals, a reference voltage and a signal voltage, are compared and the polarity of the output is used to decide the result. A status flag is also available to enable the user to quickly determine the output.

The MAX968ESA+ is powered by one or two external power supply rails and operates over a wide temperature range. It has an input range of -5.5V to 7.5V, an output range of -5.5V to 16V, and a supply voltage range of 3.0V to 24V. It operates up to 30MHz and can be used to multiplex up to 16 different channels.

The MAX968ESA+ is optimized for low-power applications and features fast settling times, as well as low propagation delays. Additionally, its low-noise architecture significantly reduces unwanted electrical noise in the surrounding circuit. This makes the MAX968ESA+ ideal for use in power sequencers, switchboards, audio systems, and many other applications.

Conclusion

The MAX968ESA+ is a low-power differential-input multiplexer/demultiplexer that can quickly and accurately compare two input voltages, outputting a signal based on the comparison of the two inputs. With a fast settling time, low propagation delay, and low-noise architecture, it is ideal for use in a variety of audio and optical applications. It can also be used as a switchboard, or in power sequencers, making it a useful and versatile device.

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