HI1-1818A-2

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HI1-1818A-2 analog switches and multiplexers (ADC/DAC switches) form a family of components that enable one voltage signal to control (switch) another voltage signal. Analog switches and multiplexers are specified in terms at ON resistance, OFF resistance, insert guard, and OFF isolation. Typical applications include power control, motor control, interface protection, DAC setup and volume control, communications interface protection and DC/AC signal mixing.

The HI1-1818A-2 analog switch and multiplexer are optocoupler devices with a high common mode voltage of 200 V and a low power dissipation of 1.7 V. They are offered with isolation levels of 200 V rms for the ON state, and 800 V rms for the OFF state.

The working principle of HI1-1818A-2 analog switches and multiplexers can be described as follows:

In its most basic form, the HI1-1818A-2 works on the principle of using a light source in the form of an LED (light emitting diode) to a photocell to act as a gate switch. On the application side, a voltage is applied to the LED, which causes it to generate light that is switched to the photocell. The photocell then converts this light into electrical current, which is then used to switch the gate (analog) switch. This gate switch can be used to switch a voltage between the two outputs (positives and negatives) of the device. The benefit of the HI1-1818A-2 is that it requires very low power dissipation and is suitable for high-voltage applications. It also offers superior isolation from the application to the gate circuit.

The benefits of using the HI1-1818A-2 analog switch and multiplexers are numerous. These components are small, easily integrated, and provide accurate control over signals. In addition, the isolation provided by these devices is excellent for applications requiring a high level of protection from electrical noise or interference. The high common mode voltage also ensures that the device can handle higher voltages without experiencing damage. Finally, the low power consumption of the HI1-1818A-2 allows them to be used in a wide variety of applications, from power control to motor control, DAC setup and volume control, communications interface protection and DC/AC signal mixing.

In conclusion, the HI1-1818A-2 analog switch and multiplexer form an ideal solution for applications requiring low power dissipation, high common mode voltages, and excellent isolation and control. These devices are suitable for a range of applications, and are easily integrated into existing circuits and applications.

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