General Description
The AS7331 is a low-power, low-noise integrated UV sensor featuring three separate UVA, UVB, and UVC channels. It converts optical radiation signals to digital results, enabling continuous or triggered measurements.
Features
- Interference filter technology for accurate UV detection
- 3-channel UVA/B/C sensing with high dynamic range
- Class-leading sensitivity and broad conversion range
- Extended temperature range (-40°C to 105°C)
Benefits
- No filter aging or drifts over lifetime and temperature
- Separated UVA/B/C radiation detection with daylight blocking
- Adjustable sensor settings for various radiation conditions
- Fast or high-accuracy radiation and fluorescence detection
Product Parameters
- Sensor Type: 3-channel UV-A/B/C sensor
- Applications: UV disinfection, UV curing, partial discharge monitoring, analytics, phototherapy, skin diagnostics, horticulture
- I/O: Fast I2C interface
- Supply Voltage: 3.3-5.0V
- Temperature Range: -40°C to 105°C
Interface
- VCC: 3.3V-5V power supply positive pole
- GND: Power supply negative pole
- SCL: Clock line on the I2C bus
- SDA: Data transmission line on the I2C bus
- SYN: Externally controlled conversion input
- RDY: Conversion status output
