资料介绍
The ISL29009 is a light-to-current silicon optical sensor
combining a photodiode and current amplifiers on a single
monolithic IC. Similar to human eyes, the photodiode has
peak sensitivity at 550nm and spans from 400nm to 700nm,
rejecting UV light and IR light. The input luminance range is
from 0.3 lux to 10,000 lux.
The integrated non-linear current amplifier boosts and converts
the photodiode signal in a square root fashion, extending the
light input dynamic range while maintaining excellent sensitivity
at dim conditions with low lux levels. The device consumes
minimal power over a wide range of ambient lux levels because
the current consumption ramps at a square root fashion. A dark
current compensation circuit aids the photodiode to minimize
temperature dependent leakage currents in the absence of
light, improving the light sensitivity at low lux levels.
In addition, the ISL29009 has an EN pin that can be used for
a polling scheme extending portables’ battery life.
The ISL29009 is housed in an ultra compact 2mmx2.1mm
ODFN plastic case surface mount package. Operation is rated from -40°C to +85°C.
combining a photodiode and current amplifiers on a single
monolithic IC. Similar to human eyes, the photodiode has
peak sensitivity at 550nm and spans from 400nm to 700nm,
rejecting UV light and IR light. The input luminance range is
from 0.3 lux to 10,000 lux.
The integrated non-linear current amplifier boosts and converts
the photodiode signal in a square root fashion, extending the
light input dynamic range while maintaining excellent sensitivity
at dim conditions with low lux levels. The device consumes
minimal power over a wide range of ambient lux levels because
the current consumption ramps at a square root fashion. A dark
current compensation circuit aids the photodiode to minimize
temperature dependent leakage currents in the absence of
light, improving the light sensitivity at low lux levels.
In addition, the ISL29009 has an EN pin that can be used for
a polling scheme extending portables’ battery life.
The ISL29009 is housed in an ultra compact 2mmx2.1mm
ODFN plastic case surface mount package. Operation is rated from -40°C to +85°C.
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