UP04979G0L

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UP04979G0L application field and working principle

The UP04979G0L is a high-performance, low-power type-N dual SPST analog switch, optimized for high-speed signal switching applications. This advanced Field Effect Transistor (FET) switch is implemented with ESD-protected version of its HVSPST series switching technology. Compared to the traditional MOSFET switch, it provides better on-state increase and improved linearity over a wide input range. Furthermore, the UP04979G0L exhibits excellent thermal-heat stability and improved repeatability, helping to reduce system costs due to increased reliability.

The UP04979G0L is used in a variety of analog signal switching applications such as switching between the outputs of two successive stages in the signal path and multiplexing multiplexed signals on a single wire. It is suitable for a variety of operating temperatures, ranging from -55°C to +125°C. These advantages make the UP04979G0L an ideal solution for a variety of applications in fields such as consumer electronics, automotive, industrial and medical.

In its simplest form, the UP04979G0L is composed of two single FETs connected in parallel and placed across the channel. Both single FETs are connected to a pair of control signals - INLO and INHI - and a pair of power signals - VDD_LOG and VDD_HI. When the control signals are both low, the single FETs are turned off and the switching is in the off-state. When either control signal is high, the channel is closed, allowing for current to pass through.

Additionally, the UP04979G0L employs a number of protection features to prevent damage caused by ESD and over-temperature. These include a built-in ESD protect diode to guard against static discharge and an over-temperature shut-off circuit to shut down the switch and prevent it from reaching excessive operating temperatures.

Using its features, the UP04979G0L provides a highly reliable, low-power switch solution for high-speed analog signal switching applications. Its features make this advanced FET switch an ideal solution for applications where fast response and improved linearity over a wide input range are requirements.

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