ams OSRAM AS7331

The AS7331 enables a direct UV radiation monitoring over the whole UV range from 240nm up to 410nm with 3 separate UV-channels independent of the radiation source. The broad dynamic range of the AS7331 enables the measurement of strong UV signals such in UV-C disinfection or UV-curing applications as well as the detection of quite low signals such as fluorescence in analytic applications. In some applications such as UV-C disinfection this capability can be combined to add additional features and capabilities in next generations of UV-treatment systems.

 
Key features

• 3 channel UVA/B/C sensing
• Interference filter technology
• High dynamic range, adjustable to the application conditions
• Class leading sensitivity

 
Additional features

• Sensing range from 240nm up to 410nm
• 3.43E+10 dynamic range (16…24 Bit ADC) with a sensitivity up to 668 counts/(μW/cm²) in UV-C
• Conversion times from 125μs on up to 16s
• Fast I²C interface
• Extended temperature range from -40°C up to 105°C

 
Applications

• UVC-light disinfection (water, air, surfaces)
  • Bacteria, protein detection
  • UV-treatment monitoring
  • Water quality detection
     
• Home appliances (washing machines)
  • Detergent concentration
  • Critical Micelle Concentration monitoring
     
• Analytics
  • Water quality
     
• Light metering
  • UV radiation