3750 Vrms isolation with integrated power — one chip replaces an optocoupler plus a DC-DC
It provides 3750 Vrms of galvanic isolation between the input and output sides, with a unidirectional data path rated at 25 Mbps.
25 Mbps data rate and 35 ns propagation delay — timing margin for SPI and UART links
With a maximum propagation delay of 35 ns in either direction and a pulse-width distortion of 3 ns, the ADUM6211BRSZ can handle SPI clock rates up to roughly 14 MHz (assuming half-period margin) and full-speed UART links at 1 Mbps or higher without bit errors. The 2.5 ns typical rise/fall time keeps signal edges clean, but the 25 Mbps ceiling means it is not suited for high-speed interfaces like USB 2.0 or gigabit Ethernet — for those, look at the ADUM5211CRSZ which runs at 100 Mbps. The 25 kV/µs common-mode transient immunity ensures the link stays intact in noisy environments like motor drives or switched-mode power supplies.
Active lifecycle — no end-of-life pressure for production BOMs
It is ROHS3 compliant and available through independent distribution.
20-SSOP package — layout and thermal considerations
The integrated IsoPower converter generates some internal heat; the datasheet recommends adequate copper area on the PCB for thermal dissipation, especially when both channels are active at 25 Mbps and the isolated output is loaded near its maximum. No exposed pad is present, so thermal management relies on the leadframe and board copper.