Mouser Electronics, Inc., the industry’s leading New Product Introduction (NPI) distributor with the widest selection of semiconductors and electronic components, is now stocking the TSL2740 combined ambient light and proximity sensor from ams. Offering very high sensitivity when detecting ambient light even at millilux-level intensity, the TSL2740 sensor is ideal for smart home assistants, smartwatches and wearables, display backlight control, tablets, smartphones, and medical diagnostics applications.
The ams TSL2740, available from Mouser Electronics, combines an ambient light sensor (ALS) and a proximity light-to-digital sensor that approximates the human eye response to light intensity under varying lighting conditions. The 2.0 mm × 2.0 mm × 0.5 mm TSL2740 features a wide dynamic range to operate effectively in a broad spectrum of lighting conditions, transforming light intensity to a digital signal output through a 1.8-V I2C interface.
The TSL2740 performs proximity sensing by measuring reflected IR light emitted from an external LED. The proximity engine features automatic ambient light subtraction, as well as offset adjustment registers to compensate for unwanted IR energy reflection at the sensor at a range of up to 10 cm.
The device’s ALS sensor features two output channels: a visible channel and an IR channel. The visible channel has a photodiode with a photopic interferometric UV- and IR-blocking filter. The IR channel has a photodiode with an IR pass filter. Each channel has a dedicated integrating data converter which converts photodiode current into a 16-bit digital output that can be interfaced with a microprocessor.
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