VCNL4000-GS08 Sensors, Transducers

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The VCNL4000-GS08 is an integrated ambient light, IR, and UV sensor. It is an infrared monolithic CMOS integrated sensor designed to operate over a wide range of temperature and current conditions. It has an built-in LED driver, and delivers ultra-low power consumption compared to other similar devices on the market. It is ideal for applications where space and power savings are key.

Features

The VCNL4000-GS08 features a low power electrostatic discharge (ESD) robustness, with an ESD rating of 2kV HBM. It contains a built-in temperature compensation, which helps to ensure accuracy across a broad temperature range of -20°C to +65°C. The low noise signal chain has a maximum signal range of 0.05 to 4kLux with an integrated narrowband filter for ambient light, IR, and UV sensing. It also features a highly linear response on the IR sensing system, with a wide range of power modes and an integrated LED driver.

Application Fields

The VCNL4000-GS08 is ideal for a wide range of applications, including consumer electronics, automotive, industrial, healthcare, and portable medical equipment. Its low power consumption makes it well suited for battery operated or energy harvesting applications. It is suitable for applications where a precise level of light, IR, and UV sensing is needed, including proximity sensing, display dimming control, sunlight estimation, face authentication, and more.

Working Principle

The VCNL4000-GS08 is an on-board ambient light, IR, and UV sensor. It works through a combination of light absorption and reflection. The wide range of bandpass filters in the sensor selectively absorb and reflect light to different extents. When light is incident on the sensor surface, part of the light is absorbed and the rest is reflected. The sensor then measures the reflected light, which is composed of ambient light, IR, and UV light. This data is then converted into electrical signals by the CMOS circuit. This signal is then amplified and sent to the application for processing.

Conclusion

The VCNL4000-GS08 is an integrated ambient light, IR, and UV sensor. It features a low power consumption, electrostatic discharge (ESD) robustness, temperature compensation, wide signal range, and a highly linear response on the IR sensing system. These features make it suitable for a wide range of applications, including consumer electronics, automotive, industrial, healthcare, and portable medical equipment. The working principle of the VCNL4000-GS08 involves a combination of light absorption and reflection to measure the ambient light, IR, and UV light from the environment.

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