S9705 Datasheet (Hamamatsu) - Light-to-frequency converter photo IC

S9705, Light-to-frequency converter photo IC

Light-to-frequency converter photo IC S9705 series Converts light level to frequency of output pulse The S9705 and S9705-01DT are photo ICs that combine a photodiode and a current-to-frequency converter on a CMOS chip.

Output is a square wave (50% duty ratio) with frequency directly proportional to light level incident on the photodiode.

The CMOS level digital output allows direct connection to a microcontroller or other logic circuitry.

The S9705 series has wide dynamic range and light level

S9705 Features

* Converts light level to frequency Wide dynamic range: 5 orders of magnitude Excellent linearity Output timing reset function Digital output for direct interface to microcontroller 4-pin plastic package Applications Liquid crystal monitor backlight dimmer for mobile devices Brightness adjustment for