ISL84715IH-T Integrated Circuits (ICs)

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ISL84715IH-T Application Field and Working Principle

The ISL84715IH-T is an industrial-grade, low-power, high-performance logic-level, small-signal, single-channel Analog Switch Multiplexer/Demultiplexer. It is an extremely versatile and reliable switch/multiplexer/demultiplexer circuit which can be used in a variety of applications.

The ISL84715IH-T has been designed using advanced CMOS process technology and has a 5V logic compatible threshold level with a low on g(s) resistance when the switch is on, making it the ideal choice for applications where both high performance and flexibility are important.

Application Fields

The ISL84715IH-T is typically used in industrial and commercial applications where low power consumption, flexibility and precision are desirable requirements. Some of the more common applications for the ISL84715 include:

• Data transfer between A/D converters, D/A converters, multiplexers, and other logic-level circuits.
• Logic and signal multiplexers/demultiplexers.
• Sigma-delta modulators, waveform generators, function generators, and audio amplifier switch.
• Switching between analog and digital circuits.
• Automatic test equipment.
• High-precision measurement systems.
• Telecommunication systems, such as in cell phones and land line phones.
• Medical devices, such as ECG and monitoring equipment.
• Industry-specific applications, such as motor control switch.

Working Principle

The ISL84715IH-T is an Analog Switch/Multiplexer/Demultiplexer which uses CMOS (complimentary metal oxide semiconductor) technology, consisting of two output channels connected to a single input. The ON/OFF control of the two output channels is enabled by two analog input signals. The two channels are separate and independent of each other, allowing for multiplexing or demultiplexing of signals.

The two input channels are connected through two high-voltage opposite-polarity CMOS, which are controlled by two analog signals. When either of the two analog signals is low (the switching input is low), the corresponding CMOS will be turned off. When the low-voltage is applied to the switching input, the associated CMOS is turned on and the output will be connected. When the high-voltage is applied, the corresponding CMOS is turned off and the output will be disconnected from the associated channel.

The IC also features a low input capacitance, a high on-state block voltage and a low on-resistance (on-state resistance) which are essential for signal integrity and signal power level maintenance. The low off-state leakage current also contributes greatly to signal integrity, as well as lower power consumption.

Conclusion

The ISL84715IH-T is an industrial-grade, low-power, high-performance logic-level, single-channel analog switch/multiplexer/demultiplexer circuit. It is suitable for a wide range of applications, including data transfer, logic and signal multiplexers/demultiplexers, sigma-delta modulation, waveform generation, audio amplifier switch and more. The two independent output channels are connected by two high-voltage opposite-polarity CMOS which are controlled by two analog inputs. The device features a low input capacitance, a high on-state block voltage and a low on-resistance, resulting in greater signal integrity and lower power consumption.

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