SI8380S-IUR

The SI8380S-IUR Isolation Interface IC is a versatile and robust solution designed for isolating digital signals in industrial and automation applications. With support for both sinking and sourcing inputs at 24 V, high data rates of up to 2 Mbps, integrated safety features, and customizable debounce filtering, it provides reliable signal isolation and enhances the performance of modern industrial control systems. Its wide voltage range, temperature tolerance, and compliance with industry standards make it a top choice for engineers and system integrators looking to optimize signal isolation in their applications.

·Programmable logic controllers

·Industrial data acquisition

·Distributed control systems

·CNC machines

·I/O modules

·Motion control systems

The 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 (sinking or sourcing inputs) 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. These products utilize Skyworks' proprietary CMOS-based isolation technology, supporting up to 2.5 kVRMS withstand voltage. This technology enables high CMTI (up to 300 kV/μs), lower propagation delays and channel skew, reduced variation with temperature and age, and tighter part-to-part matching. The Si838x offers longer service life and dramatically higher reliability compared to opto-coupled input solutions.

Product options include parallel or serialized outputs. Parallel outputs can be purchased with built-in, low-pass filters for improved noise immunity, reduced design complexity and cost. Cascading a total of 128 channels (16x Si838x) with a single MCU interface is possible with the Si8380S serial output option. The Si8380S also unlocks the ability to configure each channel with unique filtering behavior.

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