Integrated isolated power in a single SOIC-16
The ADUM6402ARIZ from Analog Devices packs four digital isolation channels and an integrated isolated DC-DC converter into a 16-SOIC-IC package. That means you get a complete galvanic isolation barrier — 5000 Vrms rated — and a regulated, isolated output voltage without adding an external transformer or a separate isolated supply module. The part belongs to the IsoPower and iCoupler series, using magnetic coupling technology for the data channels. Channel configuration is 2 inputs on side 1 and 2 inputs on side 2, all unidirectional. The 1 Mbps data rate suits GPIO isolation, slow SPI links, and status-signal transfer across the barrier. Rise and fall times are a typical 2.5 ns, keeping edge-rate manageable for most control interfaces. The integrated power converter is the headline feature: it eliminates the separate isolated DC-DC module and its associated board space, transformer selection, and EMI filtering. For a BOM line that needs isolated power and four data channels, this single chip replaces a multi-component solution.
5000 Vrms isolation — what it means for the barrier
The 5000 Vrms isolation rating and 25 kV/µs CMTI suit motor-drive feedback and medical patient-contact isolation.
1 Mbps data rate — not for high-speed buses
The 1 Mbps data rate suits UART, I²C, low-speed SPI, and discrete I/O isolation.
Supply range and temperature grade
The supply voltage range is 3 V to 5.5 V on both sides. Operating temperature covers -40°C to 105°C.