Broadcom 4-Channel High-Speed Digital Isolator IC, 3V to 5.5V

The Broadcom 4-Channel High-Speed Digital Isolator IC offers robust galvanic isolation with superior speed and compatibility. Designed to provide a 2500V RMS isolation barrier, this device ensures signal integrity and protects sensitive components from voltage spikes, ground loops, and noise on data lines across four independent channels.

Featuring a minimum common-mode rejection of 15kV/µs, it is engineered to withstand high transient interference, making it highly reliable in noisy industrial environments. The isolator is fully compatible with both +3.3V and +5V logic levels, supporting CMOS and TTL input and output standards for versatile system integration.

Performance is a key attribute, with a maximum propagation delay of just 15ns per channel and support for data rates up to 100 Mbaud. This combination of high speed and robust isolation makes it an ideal solution for applications requiring real-time data transfer across isolated domains, such as industrial communications, motor control interfaces, and power supply feedback loops.

Housed in a compact SOIC-16 package, it provides a space-efficient solution for PCB designs. The device is specified for a wide operating temperature range from -40°C to 100°C, ensuring stable performance in extreme conditions.

Key Features

• Provides 2500V RMS isolation across four channels.
• High immunity to noise with 15kV/µs minimum common-mode transient immunity.
• Compatible with 3.3V and 5V CMOS/TTL logic families.
• Ultra-fast signal transmission with 15ns propagation delay and 100 Mbaud data rate.
• Operates from a 3V to 5.5V supply voltage range.
• Robust SOIC-16 package suitable for automated assembly.

This digital isolator is a critical component for enhancing system safety, improving noise immunity, and enabling communication between circuits with different ground potentials, all without sacrificing speed.