What the 5000Vrms isolation rating means for your BOM
The ADUM242D0BRWZ is a 4-channel, unidirectional digital isolator from Analog Devices' iCoupler series, using magnetic coupling to pass signals across a reinforced insulation barrier rated for 5000Vrms. That isolation voltage is the spec that decides whether this part fits a motor-drive, industrial-PLC, or medical-equipment BOM where safety-rated galvanic isolation is required between the controller-side logic and the high-voltage domain. The 16-SOIC wide-body package (7.50mm body width) gives the creepage distance needed to hold that rating in production.
150Mbps data rate and timing margins
At 150Mbps, this part can handle high-speed serial interfaces like SPI, CAN FD, or isolated RS-485 without introducing excessive jitter. The 13ns max propagation delay (tpLH / tpHL) and 3ns max pulse-width distortion mean the timing budget stays tight enough for most industrial fieldbus and sensor links. Rise and fall times are 2.5ns typical, which keeps edge-rate-induced EMI manageable in a 16-SOIC layout.
75kV/µs CMTI — why it matters for motor drives and inverters
Common-mode transient immunity (CMTI) of 75kV/µs minimum is the spec that keeps data intact when a fast-switching IGBT or SiC MOSFET sends a kilovolt-per-microsecond step across the isolation barrier. Without this headroom, the output can glitch or latch, corrupting gate-drive or feedback signals. This rating puts the ADUM242D0BRWZ in the tier suited for inverter-fed motor drives and switched-mode power supplies.
Supply range and 3.3V compatibility
The supply range spans 1.7V to 5.5V on both sides, so it works with 3.3V and 5V logic without a separate level shifter. This simplifies the BOM for mixed-voltage designs — a 3.3V MCU on side 1 can talk directly to a 5V peripheral on side 2, or vice versa. No isolated power is generated internally; each side needs its own local supply rail.
The wide-body SOIC package handles the thermal dissipation of a 4-channel isolator at full data rate across this range.
ADI lists the ADUM242D0BRWZ as an active, current-production part with ROHS3 compliance.