Mikroe SPI Isolator 2 Click has a digital isolator optimized for a serial peripheral interface. The board features the Texas Instruments ISO7741 quad-channel digital isolator with a double capacitive silicon dioxide insulation barrier. It’s capable of galvanic isolation up to 5000Vrms. The ISO7741 provides high electromagnetic immunity and low emissions at low power consumption while isolating digital I/Os. It has three forward and one reverse-direction channel with enable pins that are used to put the respective outputs in Hi-Z state.