ISO7240MDWG4

Overview

The ISO7240MDWG4 is a high-speed, quad-channel digital isolator manufactured by Texas Instruments. It features four unidirectional channels with a data rate of 150 Mbps and a common-mode transient immunity (CMTI) of 100 kV/µs. The device operates on a single supply voltage ranging from 3.15 V to 5.5 V and draws a typical supply current of 17 mA per channel. It provides an isolation voltage of 5000 Vrms and is housed in a 16-pin SOIC package with a wide body.

Feature Summary

• High-speed data transmission capability supporting up to 150 Mbps
• Exceptional magnetic noise immunity with 100 kV/µs CMTI rating
• Quad-channel architecture for efficient multi-line isolation
• Wide operating temperature range suitable for industrial environments

Applications

• Industrial automation systems requiring robust signal isolation
• Medical equipment needing reinforced galvanic isolation
• Power electronics monitoring and control circuits
• Inverters and motor drives in harsh electromagnetic environments

Procurement Notes

Verify the specific suffix 'M' indicates the 150 Mbps speed grade and 100 kV/µs CMTI rating, as other variants like 'C' or 'A' differ significantly in performance. Confirm the 'WG4' suffix denotes the SOIC-16 wide-body package and RoHS compliance. Check current lifecycle status as TI may update production schedules. Ensure compatibility with your system's voltage levels and thermal requirements before ordering.

Selection Notes

Select this component when high-speed data integrity is critical in noisy environments. The 150 Mbps rate exceeds standard RS-485 or CAN bus requirements, making it suitable for faster serial interfaces. Compare against lower-speed variants if cost is a primary constraint, but note that the 'M' grade offers superior transient immunity. Ensure the 5000 Vrms isolation level meets safety standards for your specific application sector.

Part Context

This part belongs to the ISO7240 family of quad-channel digital isolators from Texas Instruments. It utilizes capacitive coupling technology to provide electrical isolation between input and output sides. The family includes variants with different speed grades and insulation ratings, such as the ISO7240CDWR for general-purpose applications. The ISO7240MDWG4 represents the high-performance tier within this lineup.

Replacement Considerations

Direct pin-compatible substitutes include other ISO7240 variants with matching package and channel count, though speed and CMTI ratings will vary. Cross-brand alternatives like ADUM344x series offer similar functionality but require verification of logic thresholds and propagation delay characteristics.