ADUM1400CRWZ

The ADUM1400CRWZ is a quad-channel digital isolator manufactured by Analog Devices, integrating the company’s iCoupler technology to provide galvanic isolation for high-speed digital signals. Housed in a wide-body SOIC-16W package, this device offers four independent isolation channels with a typical data rate of up to 90 Mbps and a withstand isolation rating of 2.5 kV rms for one minute. The internal architecture uses chip-scale micro-transformers to couple digital signals across a silicon dioxide dielectric barrier, ensuring consistent propagation delay, low pulse-width distortion, and immunity to electromagnetic interference that can compromise optocoupler-based solutions. Each channel maintains a default high or low output state upon loss of input power, with the channel configuration fixed in a 4-forward/0-reverse arrangement.

Typical applications span industrial automation, motor drives, isolated SPI or RS-485 interfaces, and general-purpose data-bus isolation in systems requiring reliable signal integrity in noisy environments. The industrial temperature range of −40 °C to +105 °C supports deployment in factory-floor equipment, process control nodes, and instrumentation. As a commercial/industrial-grade component, this part does not carry a military suffix or /883 screening; procurement engineers evaluating it for aerospace or defense programs should verify qualification requirements against system reliability standards and consider whether extended temperature or enhanced screening variants are necessary. The device is supplied in lead-free RoHS-compliant packaging and maintains active production status at Analog Devices, offering a stable long-term supply with broad authorized distribution for high-reliability and industrial end markets.