ISL84517IH-T

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ISL84517IH-T, a low on-resistance, low off-isolation, low capacitance analog switch, is offered in a 3x2mm ultra-small DFN package. It has extremely low ground-sensing on-capacitance, and is ideal for a wide range of applications. As an interface - analog switches, multiplexers, demultiplexers, ISL84517IH-T can be particularly useful to connect two different class analog circuits. Additionally, it performs an important role in signal multiplexing, routing, switching, and level shifting.

The ISL84517IH-T is a dual single pole/double throw (SPDT) switch designed to use a +1.65V to +3.3V digital control voltage to enable or disable 1 of 2 connections. The on-resistance (RON) is 20 ohms MAX, off-isolation (ISO) is 65dB MIN, and total harmonic distortion (THD) is -65dB MAX. The voltage rating is +15V with a +30V ABS MAX and the current rating is 40mA. It is designed with advanced CMOS process technology, allowing it to operate at very low power. The single supply voltage, low voltage, and low power capability of the device allows it to be used in a wide array of applications including instrumentation, medical and industrial control systems.

The working principle of the ISL84517IH-T is simple: when powered on, their paths open and are ready to be used as an interface between two circuits. The power down signal, when pulled low, closes the SPST switch paths which prevent signal flow from one circuit to the other. The ISL84517IH-T can be used to control the flow of signals between two circuits in an isolated manner, without any noise interference. The SPI-controlled device supports both single ended and differential signal formats, allowing it to easily handle communication interface signals, such as data, clocks, and I2C, as well as to switch high speed digital signal types of up to 400MHz. The CMOS process incorporated in this device allows it to operate with high switching speed, typically 5ns to 8ns. In addition, the wide operating temperature range (-40C to + 85C) makes this device suitable for a variety of applications.

Due to its low-capacitance and extremely low on-resistance, the ISL84517IH-T is ideal for applications where high speed signal integrity and low power are required. It is suitable for applications such as USB (Universal Serial Bus) interfaces, USB ports, audio switching, video switching, and DC level shifting. Additionally, the device’s fast switching speed and low on-resistance make it an excellent choice for high-frequency signal switching applications such as Layer 1, 2, and 3 switching, and 10/100/1000 Ethernet (Gigabit) switching. It is also useful in power systems where it can be used to control current flow and to protect sensitive equipment from overvoltage or current overload.

The ISL84517IH-T is an ideal solution for applications requiring a high speed and low power interface between two dissimilar circuits. With its robust features, such as low on-resistance, low off-isolation, and low capacitance, it enables high speed and reliable signal transfer between the two circuits, while maintaining the integrity and stability of each circuit.

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