SLAU889 December 2022
The ISOM8710 device is capable of being pin-compatable and drop-in replaceable with many optocoupler devices. Opto-emulators offer significant reliability and performance advantanges compared to traditional optocouplers, including high common mode transient immunity (CMTI), low propgation delay, small pulse width distortion (PWD), low power consumption, wider temperature ranges, and tight process controls result in small part-to-part skew. Since there is no aging effect or temperature variation to compensate for, the emulated-diode input-stage also consumes less power than typical optocouplers.
The ISOM8710 Opto-Emulator replicates the characteristics of traditional optocouplers without the drawbacks of aging and thermal drift by using logic input and output buffers separated by a silicon oxide (SiO2) insulation barrier. When used with isolated power supplies, these devices block high voltages, isolate grounds, and prevent noise currents on a data bus from entering the local ground and interfering with or damaging sensitive circuitry.