Ambient light sensor TSL2740 series

photodiodeprogrammable

Light-to-Digital Converter with I²C interface Features - Integrated on-chip photopic filter - High Sensitivity down to mLux levels - 0.18µm process technology with 1.8V I²C - 1M:1 dynamic range - Programmable proximity offset adjustment - Proximity automatic ambient light subtraction Benefits - Provides near photopic responsiveness - Design flexibility for dark glass & placement - Reduces power consumption - Enables dark room to sunlight operation - Compensates for unwanted IR energy system crosstalk reflection - Compensates for unwanted ambient light photodiode current Product parameters Supply Voltage [V]: 1.8V I²C Bus: I²C - 1.8V Programmable: Gain, Integration Time, Interrupt Max. Lux Integrated Capabilities: ALS, Prox Recommended Operating Distances [cm]: 10 Temperature Range [°C]: -30 to 85 Packages: QFN (10-Pin) General Description The TSL2740 includes both proximity detection and very-high sensitivity light-to-digital converter ambient light sensing (ALS) features. The proximity detection feature provides object detection using photodiode detection with reflected IR energy. The detect/release events are interrupt driven, and occur when proximity result crosses upper and/or lower threshold settings. The proximity engine features offset adjustment registers to compensate for unwanted IR energy reflection at the sensor. Proximity results are further improved by automatic ambient light subtraction.