ISO7220MDRG4

Overview

The ISO7220MDRG4 is a dual-channel digital isolator from Texas Instruments, featuring a 2/0 channel configuration with unidirectional signal flow. It supports signaling rates up to 150 Mbps using capacitive coupling technology. The device operates within a supply voltage range of 3 V to 5.5 V and provides an isolation voltage rating of 5000 Vrms. It is housed in an 8-pin SOIC package and functions reliably across an industrial temperature range of -40°C to +125°C.

Feature Summary

• High-speed data transmission capability supporting up to 150 Mbps signaling rates
• Robust galvanic isolation barrier rated at 5000 Vrms for high-voltage noise immunity
• Unidirectional signal path design simplifying circuit topology for specific interface needs

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing enhanced safety isolation barriers
• Power electronics monitoring circuits demanding high common-mode transient immunity

Procurement Notes

Verify the specific suffix 'M' indicates the 150 Mbps speed grade and wide operating temperature range compared to standard variants. Confirm the 'DRG4' suffix corresponds to the tape-and-reel packaging format and RoHS compliance status. Ensure the SOIC-8 package dimensions match your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when bidirectional isolation is not required but high-speed data throughput is critical. The 2/0 channel layout suits applications where only input signals need isolation. Consider the 150 Mbps rate against system clock speeds to ensure adequate margin. Evaluate the 5000 Vrms isolation level against regulatory safety standards applicable to your specific end-product environment.

Part Context

This part belongs to the ISO722x family of dual-channel digital isolators. It shares the same physical package and basic functionality as other members like the ISO7220ADRG4 but differs significantly in speed rating and isolation voltage specifications. The family utilizes Texas Instruments' capacitive isolation technology for reliable performance.

Replacement Considerations

The ISO7220ADR may serve as a lower-speed alternative if 1 Mbps suffices. For bidirectional requirements, consider the ISO7221 series. Verify that any substitute maintains the 5000 Vrms isolation rating and 150 Mbps data rate to ensure functional equivalence.