The ADUM3210TRZ-RL7: ROHS3 compliant. No special handling or exemption expiry to track.
10 Mbps data rate — sizing the isolation channel correctly
Rated at 10 Mbps, this part sits in the middle of the iCoupler speed tiers. It handles SPI clock up to 10 MHz, UART at any baud rate below that, and general-purpose GPIO isolation. If your design needs 25 Mbps (for faster SPI or parallel buses), the ADUM3200CRZ-RL7 is the same pinout at 25 Mbps but with a 105°C ceiling instead of 125°C. Propagation delay is 50 ns max in both directions — symmetrical, so no pulse-width skew from direction reversal. Pulse-width distortion is held to 3 ns max, which keeps the duty cycle intact for PWM or one-wire protocols.
2500 Vrms isolation and 25 kV/µs CMTI — where this part lives
2500 Vrms reinforced isolation per the spec. That covers industrial motor drives, inverters, and any application where the isolated side references a different ground potential. The 25 kV/µs common-mode transient immunity means it won't glitch when a motor drive switches IGBTs at high dV/dt — a common failure point with optocoupler-based isolators. No isolated power converter on-chip, so each side needs its own local rail.
Package and footprint — 8-SOIC, no surprises
Standard 8-SOIC body, 3.90 mm width. No exposed pad, no thermal vias needed. Surface-mount only.
Full industrial temperature range plus the extra margin to 125°C. That puts it in the zone for outdoor telecom cabinets, under-hood automotive (non-AEC-Q but still rated for the temperature), and factory-floor sensors near heat sources. The ADUM3200BRZ-RL7 sibling tops out at 105°C if you need a lower-cost option for benign environments.