ADUM1401

The ADUM1401 is a quad-channel digital isolator based on Analog Devices' iCoupler® technology, combining high-speed CMOS and monolithic transformer technology. It provides superior performance compared to optocoupler devices, eliminating design difficulties associated with uncertain current transfer ratios, nonlinear transfer functions, and temperature/lifetime effects.

This isolator supports bidirectional communication and 3V/5V level translation, with a high data rate of up to 90 Mbps (NRZ). It offers precise timing characteristics, including a maximum pulse width distortion of 2 ns and channel-to-channel matching of 2 ns. High common-mode transient immunity of greater than 25 kV/µs is also a key feature.

The ADUM1401 operates with supply voltages ranging from 2.7 V to 5.5 V, ensuring compatibility with lower voltage systems. It features low power operation, consuming as little as 0.7 mA per channel at 3 V and 0 Mbps to 2 Mbps, and up to 31 mA per channel at 5 V and 90 Mbps. The device is designed for high-temperature operation up to 105°C.

Available in a 16-lead SOIC wide body package, the ADUM1401 is suitable for various applications including general-purpose multichannel isolation, SPI interface/data converter isolation, and RS-232/RS-422/RS-485 transceiver isolation. Safety and regulatory approvals include UL recognition (2500 V rms) and VDE certification.