What the ADUM3210BRZ-RL7 brings to a galvanic isolation design
The ADUM3210BRZ-RL7 is a 2-channel, unidirectional digital isolator from Analog Devices' iCoupler series, built on magnetic coupling technology. It provides 2500Vrms galvanic isolation in a standard 8-SOIC footprint, with a data rate of 10Mbps and propagation delays of 50ns max per channel. The supply range spans 3V to 5.5V, letting it bridge voltage domains common in industrial control, motor drives, and isolated data interfaces.
Isolation and transient immunity — the parameters that define the safety margin
Rated at 2500Vrms, the ADUM3210BRZ-RL7 covers the basic isolation requirement for many industrial and medical secondary-side applications. The common-mode transient immunity (CMTI) is specified at a minimum of 25kV/µs — a figure that matters when the isolator sits on a motor-drive phase leg or an inverter output where fast dV/dt events can couple across the barrier. A CMTI floor of 25kV/µs means the part holds its output state through the edge without glitching, which is the difference between a clean data stream and a corrupted one in noisy environments.
Speed and timing — 10Mbps with tight pulse-width distortion
The 10Mbps data rate suits SPI, UART, and general-purpose logic-level isolation where the bus runs at a few MHz. Pulse-width distortion is held to 3ns max, and the rise/fall times are a symmetrical 2.5ns typical. These timing specs mean the output pulse width closely mirrors the input — important when the downstream logic is edge-sensitive or when maintaining duty cycle accuracy across the barrier matters.
Active lifecycle — no last-time-buy watch needed
This is a current-production part, not an NRND or EOL line that would trigger a last-time-buy scramble.