Skyworks Solutions OLI300, OLS300, OLI500 and OLS500 high-speed optocouplers

The OLI300, OLS300, OLI500 and OLS500 high-speed optocouplers are now available from Skyworks Solutions. The optocouplers feature 1500 VDC electrical isolation between the input and output, designed for applications such as avionics, biomedical materials, radar, space, surveillance systems, instrumentation and military communications.

The OLI300 and OLS300 optocouplers are suitable for interfacing transistor-transistor logic (TTL) to low-power Schottky transistor-transistor logic (LSTTL). They are also suitable for the complementary metal–oxide–semiconductor (CMOS) and wide-bandwidth analog applications. The optocouplers include an LED and an integrated photodiode transistor detector. The integrated photodiode transistor is designed to improve the switching speed (compared to standard phototransistors) by reducing the base-to-collector capacitance.

The OLI500 and OLS500 are suitable for high-speed digital interfacing applications, elimination of ground loops and input/output buffering. They include an LED and an integrated high-speed detector. The LED light is collected by the photodiode in the integrated detector and amplified by a high-gain linear-amplifier that drives a Schottky-clamped open-collector output transistor. The typical propagation delay for the optocouplers is 60 ns. The internal shield improves common-mode transient immunity to 1000 V/μs minimum.