VEML6075 - UVA and UVB Light Sensor with I²C Interface

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The VEML6075 senses UVA and UVB light and incorporates photodiode, amplifiers, and analog / digital circuits into a single chip using a CMOS process. When the UV sensor is applied, it is able to detect UVA and UVB intensity to provide a measure of the signal strength as well as allowing for UVI measurement. The VEML6075 provides excellent temperature compensation capability for keeping the output stable under changing temperature.

The Optoelectronics group of Vishay introduced a new integrated ultraviolet (UV) light sensor for the detection of UVA and UVB light intensity. Featuring Filtron™ technology for high UV sensitivity and linearity, the VEML6075 incorporates an IC with 5 sensitive areas and signal processing in a compact 2.0mm by 1.25mm by 1.0mm surface-mount package, while offering an I2C bus interface for simple operation. The device saves space and increases design flexibility by incorporating the circuitry needed for consumer, medical, and industrial applications in one compact unit.

The light sensor offers individual UVA and UVB channels with 16-bit resolution and excellent sensitivity of 365nm and 330nm, respectively. Designed to convert solar UV light intensity to digital data, the VEML6075 provides a measurement of signal strength and allows for true UVI calculation in smartphones, smart watches, sport bands, notebook computers, and weather stations. The UVI value indicates how much UV radiation will reach human skin when outside, allowing precautions to be taken to avoid sunburns in the short term and skin cancer in the long term.

The VEML6075 delivers excellent performance under long-term solar UV exposure and offers high temperature compensation stability from -40°C to +85°C. The device features a shutdown mode that reduces power consumption to 800 nA, and an operating voltage range of 1.7V to 3.6V — ideal for portable electronics and wearable devices. Offered in a lead (Pb)-free, 4-pin OPLGA package, the VEML6075 is RoHS-compliant, halogen-free, and Vishay Green.


◾Compact package: 2.0mm x 1.25mm x 1.0mm
◾UVA and UVB individual channel Solutions
◾16-bit resolution per channel
◾Operating voltage range: 1.8V to 3.6V


◾UV index sensors
◾Wearables (wrist sport bands, smartwatches, shirts, hats)
◾Material presence and particle detection
◾Environmental and pollution detection, and weather stations