TIISO7721DR

Overview

The ISO7721DR is a high-performance, dual-channel digital isolator providing 3000Vrms isolation in a compact 8-SOIC package. It features one forward and one reverse channel, supporting data rates up to 100 Mbps with a robust capacitive coupling barrier. This device is designed to protect sensitive circuitry from high-voltage transients and eliminate ground loops in harsh environments.

Why Choose This Part

The device offers a very low propagation delay of 11 ns and high common-mode transient immunity (CMTI) of 85kV/us, ensuring signal integrity in noisy switching environments. It operates across a wide supply range from 2.25V to 5.5V, facilitating seamless level translation between different logic voltage rails. With a low typical run current of 1.7 mA per channel at 1 Mbps, it is suitable for power-constrained industrial designs.

Applications

Getting Started

To evaluate this part, use the ISO7721EVM evaluation module which allows for signal integrity testing and power consumption measurements. Ensure 0.1uF bypass capacitors are placed as close as possible to the VDD pins on both sides of the isolation barrier to maintain stability. Designers should follow standard high-speed PCB layout practices, keeping traces short and maintaining the required creepage and clearance distances under the IC.

ISO7721 Family

Comparing specs that differ across variants. The current part is highlighted.

Also Consider