The ADUM3210TRZ-EP-RL7 is a two-channel digital isolator from the iCoupler family, using magnetic coupling to pass a single-direction data stream across a 2500Vrms isolation barrier. It is a general-purpose part — no integrated DC-DC converter — sized for signal isolation in industrial fieldbus, motor-drive feedback, medical patient-interface, and instrumentation circuits where the data rate stays at or below 25Mbps. The two inputs sit on Side 1; both outputs on Side 2, so the channel direction is fixed: data flows one way only. At 25kV/µs min, this part handles the transient environment of a typical motor-drive or inverter leg.
Propagation delay and timing margin
Maximum propagation delay is 50ns in both directions (tpLH and tpHL), with a pulse-width distortion cap of 3ns. For a 25Mbps NRZ signal — 40ns bit period — the 50ns delay consumes the entire bit period if you chain two isolators in series. Keep the path to one isolator per signal, or budget the delay in your timing closure. Rise and fall times are typically 2.5ns, which keeps the edge rate fast enough for SPI clock lines up to 20 MHz or so without excessive ringing, provided the PCB trace is short and the load capacitance is modest.
ROHS3 compliant — no lead, no restricted substances under the current EU directive. The -EP suffix denotes an enhanced-product (extended temperature and controlled manufacturing flow) variant, not an automotive grade (no AEC-Q100 claim in the record).