3000Vrms isolation in a 5-channel unidirectional pack
The ADUM152N0BRZ-RL7 is a 5-channel digital isolator from Analog Devices' iCoupler series, using magnetic coupling to pass signals across a 3000Vrms isolation barrier. Three channels drive from Side 1 to Side 2, two go the other way — a 3/2 split that fits SPI-plus-interrupt or CAN-plus-fault-feedback layouts without wasting a channel. Data rate hits 150Mbps, enough for fast SPI or parallel GPIO isolation, with propagation delay held to 13ns max and pulse-width distortion under 4.5ns. The part operates from 1.7V to 5.5V on either side, so it bridges 1.8V and 3.3V or 3.3V and 5V domains without a level shifter.
75kV/µs CMTI — what it means when the motor starts
Common-mode transient immunity is the rating that separates a digital isolator that works from one that latches up or bit-flips when a relay bank, motor drive, or solenoid slams a fast voltage swing across the barrier. The ADUM152N0BRZ-RL7 specifies a minimum of 75kV/µs, which means it holds its output state through the kind of dv/dt you see in industrial inverter drives and automotive traction inverters. If your system has a switching power stage on one side of the barrier and a sensitive controller on the other, this is the spec that keeps the data valid.
Temperature range and industrial deployment
The 125°C upper limit means it can sit next to a hot power stage or in an engine bay without derating. Magnetic coupling doesn't suffer the LED aging that plagues optocouplers at high temperature, so the isolation performance stays stable over the product's lifetime.
Package and supply flexibility
Housed in a 16-pin SOIC with 3.90mm body width, the part uses a standard footprint that routes easily on a two-layer board. Supply voltage on each side can range from 1.7V to 5.5V independently, so you can interface a 1.8V MCU to a 5V sensor bus without extra translation. No isolated DC-DC converter is integrated — the part is signal isolation only, so plan for a separate isolated power supply if the barrier also needs to break the ground loop for power.
ROHS3 compliant per the listing.