MAX22664/5 Six-Channel Digital Galvanic Isolators Analogue Devices / Maxim Integrated MAX22664/5 Six-Channel Digital Galvanic Isolators are fast, reinforced, low-power isolators designed using proprietary process technology. These isolators use 0.71mW power per channel at 1Mbps (1.8V supply) to transfer digital signals between circuits with differential power domains. The MAX22664 isolator has four channels for digital signal transmission, two of which travel in one direction and the other two in the opposite direction. The MAX22665 isolator has five channels for digital signal transmission in one direction and one channel in the opposite direction.