This circuit was found in a British documentation from 1969. It can be implemented with modern transistors. The pass band is 6 MHz.
This circuit uses a dual gate MOSFET and was found in an American 1980s documentation. The same...
This circuit was found in and old documentation of 1958 and uses complementary germanium...
July 2017 - Mouser Electronics announced the availability of its new ISO771x digital isolators...