ISO722MD

Overview

The ISO722MD is a dual-channel digital isolator from Texas Instruments featuring silicon dioxide (SiO2) isolation barriers. It supports data rates up to 150 Mbps with propagation delays of 40 ns. The device operates on 3.3-V or 5-V supplies, drawing 6 mA per channel. It offers galvanic isolation up to 4000 VPK and complies with UL 1577 and IEC 62368-1 standards. Packaged in an 8-pin SOIC, it functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides high-speed bidirectional communication via SiO2-based capacitive coupling
• Ensures robust galvanic isolation between logic input and output buffers
• Supports standard 3.3-V and 5-V logic supply voltages for broad compatibility

Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power metering and energy monitoring

Procurement Notes

Verify the specific suffix 'MD' indicates the tube package variant. Confirm compliance requirements against your target market regulations. Check for obsolescence notices as this component may be scheduled for discontinuation by the manufacturer. Ensure ESD handling protocols are followed during assembly.

Selection Notes

Select this part for applications requiring high-speed data transfer over isolated boundaries. Compare propagation delay and power consumption against other ISO722x variants. Verify that the 8-pin SOIC footprint matches your PCB design constraints. Ensure the isolation voltage rating meets the system's safety requirements.

Part Context

Part of the ISO722x family of dual-channel digital isolators. Designed to replace bulky magnetic isolators in compact designs. Offers improved performance over legacy optocouplers in terms of speed and power efficiency. Widely used in industrial and medical interfaces requiring reliable signal transmission.

Replacement Considerations

• ISO7221CDR
• ISO7221AD