ISL84715IHZ-T Integrated Circuits (ICs)

The ISL84715IHZ-T is a quad, 4:1, analog switch that contains four independent high-speed switches. It operates over an extended 2.7V to 5.5V supply range and is designed to provide both high-speed and low-power performance in a non-inverting, low on-resistance analog switch. This product is ideal for use as a low cost, low power solution for multiplexing audio, video or sensor signals. The on-resistance is typically 5 Ohms (max) and the on-state resistance is typically 0.2 Ohms (typical).

The ISL84715IHZ-T utilizes proprietary design techniques to provide the low power and low on-resistance performance. The four independent switches are optimized to minimize the input capacitance and provide a high resistance to power supply noise, ensuring a low noise operation. All of the switches in the ISL84715IHZ-T are capable of driving a load of up to 650mA without overloading.

The ISL84715IHZ-T\'s operating voltage range is optimized to maximize the input signal handling. The maximum voltage rating of the switch is dependent on the input signal acceptance range of the device. The maximum supply voltage rating of the switch is 5.5V. The maximum voltage rating for the device is 40V for signals up to 0.1 Hz. The maximum input signal power is 2 W. The ISL84715IHZ-T is compliant with the RoHS standards.

Application Field

The ISL84715IHZ-T is suitable for switching multiple audio and video signals in consumer, industrial, medical and automotive applications. The low power consumption makes it ideal for battery-powered applications. This device is also ideal for switching sensor signals, such as temperature, pressure and humidity in industrial, medical, automotive and consumer applications. The high signal-to-noise ratio and high input power handling make it suitable for signal routing in signal distribution and signal routing systems.

Working Principle

The ISL84715IHZ-T is a quad, 4:1, analog switch that contains four independent high-speed switches. The device consists of four analog switches, each with a high-speed, low-power MOSFETs in an SOIC (saved-out) package. The device utilizes a switching architecture that enables a maximum switching time of only 100 ns and a low-on-resistance. This architecture also reduces power consumption and provides higher signal-to-noise ratios. The switches operate over an extended 2.7V to 5.5V supply range.

The low-on-resistance of the switches ensures high-speed switching, while the low-power architecture ensures low power consumption in battery-powered and portable applications. The switches also have an extremely low input capacitance and a high resistance to power supply noise. This ensures a low noise operation.

The functioning of the ISL84715IHZ-T is based on the MOSFET circuit. When a logic high is applied to the device, the gate of the MOSFET is turned on and the PFETs become connected to the source. This results in the voltage between the gate and the source increasing and a current is established between the source and the drain. When the logic low is applied to the device, the gate of the MOSFET is turned off and the PFETs are no longer connected to the source. This results in the voltage between the gate and the source being reduced to 0 and a current no longer flowing between the source and the drain.

The switching speed of the ISL84715IHZ-T is optimized for low-power applications by employing a combination of a low-on-resistance, fast switching and low input-capacitance. This allows the device to switch quickly and accurately, enabling the device to be used for multiplexing audio, video or sensor signals. The low-on-resistance ensures that no current is wasted, resulting in increased efficiency and reduced power consumption.