ISO722D

Overview

The ISO722D is a single-channel digital isolator from Texas Instruments featuring capacitive coupling technology. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 100 Mb/s. The device provides an isolation voltage rating of 2500 Vrms and offers a common-mode transient immunity (CMTI) of 25 kV/µs. Packaged in an 8-pin SOIC, it functions across an extended temperature range of -40°C to +125°C.

Feature Summary

• Single-channel unidirectional signal transmission
• Capacitive coupling for galvanic isolation
• High common-mode transient immunity

Applications

• Industrial process control systems
• Power metering equipment
• Inverter motor drives

Procurement Notes

Verify the specific suffix 'D' indicates the SOIC-8 package variant. Confirm RoHS compliance status through official manufacturer documentation. Check current lifecycle status as availability may vary by region. Ensure ESD handling protocols are followed during assembly due to moisture sensitivity classification.

Selection Notes

Select this component when a single isolated channel with high-speed performance is required. Compare against dual-channel variants if multiple signals need isolation. Consider the 8-SOIC footprint constraints relative to PCB layout requirements. Validate that the 100 Mbps speed meets system timing specifications.

Part Context

This part belongs to the ISO72x family of general-purpose digital isolators. It utilizes Texas Instruments' silicon dioxide (SiO2) insulation technology. The series includes related models such as the ISO7220 and ISO7221 for different channel configurations.

Replacement Considerations

Official substitutes include ISO7221D for dual-channel applications or ISO7220D for quad-channel needs. Verify pin compatibility before substitution.