2500 Vrms isolation, 1 Mbps — what this buys the bus
The two channels are both directed from Side 1 to Side 2 (2/0 configuration), making this part a straight drop-in for isolating a pair of digital signals — SPI clock and data, for instance — without needing to manage bidirectional lanes.
1 Mbps data rate — is it fast enough?
The 1 Mbps ceiling is the first spec to confirm against your system's throughput. It handles CAN, RS-485 at 250 kbps, SPI clock up to 1 MHz, and general-purpose GPIO isolation. What it does not do is gigabit Ethernet or high-speed USB. The propagation delay is 480 ns max each direction (tpLH / tpHL), and pulse-width distortion tops out at 14 ns. For a motor-drive PWM signal at 20 kHz, the 480 ns delay is negligible; for a 1 MHz SPI bus it eats one full clock period of margin, so verify setup/hold on the far side.
Common-mode transient immunity — 25 kV/µs
A CMTI rating of 25 kV/µs is the number that matters when the isolation barrier sees fast voltage slewing — motor-drive phases, inverter bridges, or any circuit where the ground on one side bounces hard relative to the other. Below that rating, the output can glitch or latch. At 25 kV/µs this part is solid for most automotive and industrial drives. The rise and fall times are a typical 1 ns, so edge rates are fast enough that PCB layout around the isolation barrier needs care — keep the traces short and the return path tight.
Supply range and compatibility
The same voltage range on VCC1 and VCC2 means it does not provide isolated power — the output side draws its own supply from the far-side rail. If your design needs a separate isolated DC-DC converter, budget for it; this part is signal isolation only.
No exposed thermal pad, so thermal dissipation is through the leads; at the rated 1 Mbps and typical supply currents that is not a concern.