ISO7241ADWRG4

Overview

The ISO7241ADWRG4 is a quad digital isolator from Texas Instruments featuring a 3:1 channel configuration (three forward, one reverse) within a 16-pin SOIC package. It operates with a supply voltage range of 3.15 V to 5.5 V and supports data rates up to 1 Mbps. The device provides 4000 Vpk isolation voltage and 25 kV/µs common-mode transient immunity. Key electrical parameters include a maximum propagation delay of 42 ns, typical rise/fall times of 2 ns, and an operating temperature range from -40°C to +125°C.

Feature Summary

• Provides robust galvanic isolation between circuits using capacitive coupling technology.
• Features a 3:1 channel architecture allowing flexible signal routing for mixed-direction interfaces.
• Ensures high noise immunity through specified common-mode transient rejection capabilities.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing patient isolation barriers
• Power electronics control circuits with high-voltage separation requirements

Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance when sourcing. Confirm the SOIC-16 package dimensions match your PCB footprint design. Ensure the 3.15 V minimum supply voltage aligns with your system's logic levels. Check for moisture sensitivity classification if storage conditions are not controlled.

Selection Notes

Select this component when a low-speed, high-isolation barrier is required for critical safety applications. The 1 Mbps rate suits standard protocols like UART or SPI where speed is secondary to reliability. Consider the 3:1 layout for asymmetric data flow needs. Validate that the 4000 Vpk rating meets your system's insulation coordination standards.

Part Context

This part belongs to the ISO7241 family of general-purpose digital isolators. It shares the same pinout and form factor as other variants in the series but differs in isolation voltage and data rate specifications. The 'A' designation typically denotes higher isolation ratings compared to lower-tier models.

Replacement Considerations

ISO7241ADWR is the non-RoHS version of this component. ISO7241CDWR offers higher speed but lower isolation voltage. ISO7241MDWR provides significantly higher data rates at 150 Mbps. Verify compatibility before substitution.