ISO7242CDWG4

Overview

The ISO7242CDWG4 is a quad-channel digital isolator from the ISO7242C series, manufactured by Texas Instruments. It features four unidirectional channels with a 2/2 input-output configuration. The device utilizes capacitive coupling technology to provide electrical isolation with a rated insulation voltage of 2500 Vrms. It supports data rates up to 25 Mbps and exhibits a typical propagation delay of 50 ns. The component operates within a supply voltage range of 3.15 V to 5.5 V and functions reliably across an extended temperature range of -40°C to +125°C. It is housed in a 16-pin SOIC package.

Feature Summary

• Provides galvanic isolation between circuits using high-reliability capacitive coupling technology.
• Offers four independent signal paths configured as two forward and two reverse channels for versatile interface applications.
• Ensures signal integrity with low propagation delay and minimal pulse width distortion characteristics.
• Supports operation over an extended industrial temperature range suitable for harsh environments.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing enhanced safety isolation barriers
• Power management circuits with isolated feedback loops
• General-purpose digital isolation in noisy electromagnetic environments

Procurement Notes

Verify that the specific suffix 'G4' denotes lead-free compliance and RoHS status according to official documentation. Confirm current availability status as this part number may be subject to obsolescence or end-of-life notices. Cross-reference the datasheet revision history to ensure compatibility with design requirements. Check for recommended replacement parts if active production has ceased. Validate packaging details against procurement specifications.

Selection Notes

Select this component when a quad-channel solution with unidirectional signal flow is required. Ensure the system voltage aligns with the 3.15 V to 5.5 V operating range. Consider the 25 Mbps data rate capability for bandwidth needs. Verify that the SOIC-16 package fits the PCB layout constraints. Evaluate the 2500 Vrms isolation rating against safety standards applicable to the target application.

Part Context

This device belongs to the ISO7242C family of digital isolators. It shares functional similarities with other members like the ISO7242CDWR but differs in packaging and lifecycle status. The 'G4' suffix typically indicates environmental compliance features. It serves as a general-purpose isolation solution within Texas Instruments' interface IC portfolio.

Replacement Considerations

The ISO7242CDWR is listed as a manufacturer-recommended substitute. Verify pinout and electrical parameter equivalence before substitution. Note that the CDW variant may have different packaging or lifecycle status compared to the G4 version.