ADG212AKN

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The ADG212AKN is a part of the Analog Switches, Multiplexers and Demultiplexers interface family. The device is a single-pole double-throw (SPDT) Analog Switch. This component is suitable for industrial, medical, automotive and military applications. The ADG212A is manufactured in a small plastic package, allowing it to fit into tight spaces.

The ADG212AKN consists of a pair of low resistance metal–oxide–semiconductor field-effect transistors (MOSFETs). The device includes two n-channel MOSFETs, each capable of providing a low on-state resistance of only 6Ω. The gate threshold voltage (VGS(th)) is 1.2V for the upper-MOSFET, and 3V for the lower-MOSFET. When the Voltage (VGS) is greater than VGS(th), the MOSFET switches on, conducting current in the drain-source path.

The ADG212AKN is primarily designed for applications requiring electrical isolation between the control and switching terminals. The device can be used as an always-on switch to route a current, as needed in high-speed applications. Additionally, the device can be used as a low-threshold keeper to reliably maintain the polarity of a signal when the power is off. This allows the device to be used as a memory element, instantly providing the polarity of a signal at power-up.

In a typical application, the ADG212AKN can be used to connect two voltage sources across two electrical circuits. The MOSFETs act as a switch, connecting the voltage sources to the intended circuits. The control terminal of the device is connected directly to the input voltage and functions as the control voltage for the MOSFETs. When the voltage at the control terminal is greater than the gate threshold voltage (VGS(th)), the upper MOSFET is switched on, allowing a current to flow between the input and the output. When the voltage is below VGS(th), the lower MOSFET is switched on, allowing a current to flow between the output and the input. The input and output voltages can therefore be switched between each other, allowing currents to be routed to different circuits.

The ADG212AKN is a versatile device, capable of providing precision switching between two levels of voltage. The device is designed to provide high speed operation, and reliable operation in applications requiring electrical isolation. The device\'s wide operating voltage range, low on-state resistance and low gate threshold voltage make it ideal for use in a variety of industrial, medical, automotive and military applications.

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