ISL43L711IU-T

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The ISL43L711IU-T is an interface component from Intersil that falls under the categories of analog switches, multiplexers, and demultiplexers. It is a logic-level, quad SPST (single pole, single throw), analog switch designed to switch and route signals in applications that utilize signals in the analog domain. It is designed to work with a 3 volt (V) power supply and integrate with a variety of digital logic levels.

The basic design of the ISL43L711IU-T is a four-channel analog multiplexer/analog switch that enables signals to be switched and routed at an individual line level. Each switch provides two signal paths (single pole) with a single path between the signal and ground (single throw). It is fabricated using CMOS technology, providing very low on-state resistance of 70 ohms (@ 5V).

The device is designed for applications which require signals of up to 1.5V signal and 12V signal peak-to-peak amplitude. Due to its high ESD (electrostatic discharge) immunity, it is suitable for use in applications where signals need to be routed through multiple components without suffering any degradation. Its low input and output capacitances, as well as its low voltage-induced noise, also make it well-suited for use with high-frequency signals.

The basic principle of operation of this device involves applying a switching voltage which control the switching of the signals. The logic voltage allows the signal to pass through the switch while the ground voltage blocks the passage of the signal. This switching operation can be done either through a logic input or directly through a manual switch.

The device provides very low power consumption and can be integrated into applications which require minimal levels of power. It can operate in both normal and sleep mode with power consumption of roughly 10 microamps (μA) and 1μA in these modes respectively.

The ISL43L711IU-T can be used in a variety of analog switch and multiplexer applications such as bridges, mixers, signal routing water mark readers, and audio routing. It is also often found in automotive, military and healthcare applications where its ability to route signals through multiple components without suffering any degradation is advantageous.

The ISL43L711IU-T is a versatile interface component that has proven to be a cost-effective solution for many application scenarios. Because of its high ESD immunity, low power consumption, and integrated logic, it can provide reliable signal routing for a variety of applications.

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