Digital UV Index sensor: 0 - 15 UV Index output range

The UVIS25 is a digital UV index sensor able to provide an accurate measurement of the ultraviolet radiation index (UVI) from sunlight. It includes a sensing element and a mixed signal ASIC to provide the UV index data through I2C and SPI interfaces.

A dedicated technology has been developed to achieve the greatest accuracy for UV index measurements.

The UVIS25 allows the measurement of the UV index, without the need for a dedicated algorithm to calculate the UV index and without specific calibrations at the customer manufacturing line.

The device can be configured to generate interrupt events based on a threshold crossing or when a new set of data is generated. The event is available in a register as well as on a dedicated pin.

The UVIS25 is available in a full-mold LGA package (LGA). It is guaranteed to operate over a temperature range extending from -20 °C to +85 °C. The package is transparent to allow external solar radiation to reach the sensing element.

Key Features

  • 0 - 15 UV index output range
  • Resolution: UVI/16
  • Active and power down modes
  • Continuous reading at 1 Hz ODR / one shot mode
  • Interrupt functions: Data Ready and UVI thresholds
  • SPI and I²C interfaces
  • Supply voltage: 1.7 to 3.6 V
  • ECOPACK® lead-free compliant


Technical Documentation

Product Specifications
Description Version Size
DS10791 DS10791: Digital UV index sensor: 0 - 15 UV index output range 5.0 545 KB

Tools and Software

Embedded Software
MEMS and Sensors Software
Support & Community

Sample & Buy

Part Number Marketing Status Quantity Unit Price (US$) * Package Packing Type ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
UVIS25MTR NRND - - LGA 2.5X2.5X0.8 10L SUB0.3 DOME Tape And Reel NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
UVIS25MTR NRNDLGA 2.5X2.5X0.8 10L SUB0.3 DOMEIndustrialEcopack2

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.