The Skyworks Solutions Inc Si838x provides eight input channels ideal for 24 V digital logic commonly used for industrial applications. These channels can either sink or source current and feature integrated safety rated isolation. In combination with a few external components, this provides compliance to IEC 61131-2 switch types 1, 2, or 3. The input interface is based on skyworks ground breaking CMOS based LED emulator technology which enables the bipolar capability with no VDD required on the field side. The output interface from the Si838x device allows for low power operation with 2.25 V compliance.

Bipolar digital interface with 24 V sinking or sourcing inputs
Eight total inputs in one package
High data rates of up to 2 Mbps
Safety rated integrated isolation of 2.5 kVRMS
Low input current of 1 mA typical
No VDD required on field side
High electromag