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Blog
Thursday, August 24, 2006
Light-to-digital sensor uses a 50/60 Hz rejection filter
Aug 24 2006 7:06AM | Permalink |Comments (0) |
Combining a photodiode, a current amplifier, a 50/60-Hz rejection filter, a 15-bit ADC, and an I2C output, these integrated light-to-digital sensors suit backlight control, improving battery life and panel visibility. Able to sense ambient light from 380 to 770 nm, the ISL29001 and ISL29002 reject unwanted infrared radiation and convert light intensity to the I2C digital-output signal with low power consumption and human-eye sensitivity. The ISL29001 comes in a DFN-6 package and costs $1.30; the ISL29002 comes in a DFN-8 package and costs $1.39.
Intersil Corp, www.intersil.com
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