MAX22518 Dual-Channel Digital Isolator

Analog Devices MAX22518 Dual-Channel Digital Isolator features integrated field-side supply using ADI's proprietary process technology. The field-side power is supplied by the logic side using an integrated isolated DC-DC converter. This approach eliminates the bulky and expensive external isolated power supply when the power demand of the field side is small. The MAX22518 features basic isolation with a withstand voltage rating of 3.5kV_RMS for 60s or 445V_RMS of continuous operation. With a single resistor on each input, the inputs of the MAX22518 can withstand 1.2/50μs surge pulses up to ±2kV between inputs (common mode) or up to ±1kV between input and field ground (differential), as well as continuous shorts to 24V_AC.