TSL2772
Light-to-Digital Converter with
Proximity Sensing
General Description
The TSL2772 device family provides both ambient light sensing
(ALS) and, when coupled with an external IR LED, proximity
detection. The device family is based on the ams patented
dual-diode technology that enables accurate ALS results and
approximates human eye response to light intensity under a
variety of lighting conditions.
The TSL2772 ALS includes a reduced-gain mode that extends
the operating range to 60k lux in sunlight. The device package
incorporates a UV-rejection filter that enables accurate ALS. The
TSL2772 proximity detection includes improved
signal-to-noise performance and selectable gain modes. A
proximity offset register allows compensation for optical
system crosstalk between the IR LED and the sensor. To prevent
false proximity data measurement readings, a proximity
saturation indicator bit signals that the internal analog circuitry
has reached saturation.
Ordering Information and Content Guide appear at end of
datasheet.
Figure 1:
Added Value Of Using TSL2772
Key Benefits & Features
The benefits and features of TSL2772, Light-to-Digital
Converter with Proximity Sensing are listed below:
Benefits
Features
• Enables Operation in IR Light Environments
• Patented Dual-Diode Architecture
• Enables Operation in 60K Lux Sunlight and Accurate
Sensing Behind Spectrally Distorting Materials
• Improves Lux Accuracy Across Varying Light Sources
• Compensates for Internal System Offset or IR LED
Crosstalk
• 8M:1 Dynamic Range
• UV-Rejection Package
• Proximity Offset Adjustment
• Prevents False Proximity Detection in Bright Light
• Proximity Saturation Indicator Bit
ams Datasheet
[v1-00] 2016-Aug-26
Page 1
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