Light Intensity to Frequency IC

This is a programmable light to frequency IC from TAOS that outputs a pulse train or a square wave (50% duty) with the frequency that is directly proportional to the incident light intensity. Uses a simple TTL output for easy interfacing to a microcontroller.

Three different sensitivity selections and four different frequency scaling parameters. 

Features:

• Supply voltage 2.7 - 5.5VDC
• 320nm - 1050nm response range
• 2mA supply current in power on mode
• 5uA current in power down mode mode
  
• Temperature compensated for UV to visible range
  

Documents:

• TSL230R Datasheet
• Great Arduino Tutorial by Roaming Drone