ISO7720FDR

Overview

The ISO7720FDR is a high-speed, robust EMC reinforced dual-channel digital isolator from Texas Instruments. It features capacitive coupling technology with a data rate of 100 Mb/s and unidirectional signal transmission across two forward channels. The device operates within a supply voltage range of 2.25 V to 5.5 V, consuming 11.6 mA of working power current. It provides an insulation voltage of 3000 Vrms and supports an isolation rating up to 5000 VRMS. Key timing parameters include a propagation delay of 17 ns, rise/fall times of 3.9 ns, and pulse width distortion of 0.5 ns. It functions reliably in temperatures from -55°C to +125°C and is housed in an SOIC-8 package.

Feature Summary

• Robust EMC performance for reliable operation in noisy environments
• Reinforced dual-channel isolation barrier with high CMTI
• High-speed data transmission at 100 Mbps
• Wide operating temperature range suitable for industrial applications

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety isolation
• Power metering and energy monitoring circuits
• Inverter drives and motor control applications

Procurement Notes

Verify the specific suffix 'FDR' corresponds to the SOIC-8 tape-and-reel packaging configuration as documented by Texas Instruments. Confirm that the component meets the required RoHS compliance standards for your region. Ensure that the design accounts for the specified humidity sensitivity level during storage and handling processes to maintain device integrity before soldering.

Selection Notes

Select this component when reinforced isolation and high common-mode transient immunity are critical for system safety and signal integrity. The dual-channel unidirectional configuration suits applications where signals flow in one direction across the isolation barrier. Consider the 100 Mbps data rate and low propagation delay for high-speed digital communication needs within the specified voltage and temperature constraints.

Part Context

The ISO7720FDR belongs to the ISO772x family of high-speed digital isolators manufactured by Texas Instruments. This series utilizes capacitive coupling technology to provide electrical isolation between circuit sections. The FDR variant specifically denotes the SOIC-8 surface-mount package with reel packaging, designed for automated assembly processes in electronic manufacturing.

Replacement Considerations

Consult official Texas Instruments documentation for qualified replacement part numbers within the ISO772x family or comparable digital isolator series. Verify pin compatibility and electrical specifications before substituting components to ensure system functionality and safety ratings remain intact.