OPL536B [TT Electronics]

These sensors integrate a photodiode, amplifier, voltage regulator, Schmitt trigger, and NPN output transistor on a single silicon chip. They are encapsulated in a molded plastic side-looking package with an integral lens, providing enhanced optical coupling and mechanical protection. The Schmitt trigger offers high immunity to noise on input and Vcc. The devices exhibit stable performance over supply voltages ranging from 4.5 V to 16 V and a wide range of irradiance levels. They feature TTL/LSTTL compatible logic level outputs and can drive multiple TTL loads without additional circuitry.