ISO7761DBQR

Overview

The ISO7761DBQR is a six-channel digital isolator from Texas Instruments, housed in an SSOP-16 package. It features capacitive coupling for signal transmission with reinforced isolation ratings. The device supports data rates up to 100 Mb/s and operates within a supply voltage range of 2.25 V to 5.5 V. It provides five forward channels and one reverse channel, ensuring robust electromagnetic compatibility. Key electrical parameters include a propagation delay of 11 ns, a maximum power dissipation of 200 mW, and an operating temperature range from -55°C to +125°C.

Feature Summary

• Provides six isolated channels with a 5/1 forward/reverse configuration for complex system interfacing
• Ensures robust electromagnetic compatibility (EMC) performance suitable for noisy industrial environments
• Utilizes capacitive coupling technology to deliver high-speed digital signal transmission across isolation barriers

Applications

• Industrial automation systems requiring multi-channel galvanic isolation
• Medical equipment needing reinforced insulation for patient safety compliance
• Power metering applications involving high-voltage sensing interfaces

Procurement Notes

Verify the specific suffix 'DBQR' corresponds to the SSOP-16 package and reel packaging format. Confirm that the reinforced isolation ratings meet the specific safety standards required by your target application region. Ensure input voltage levels are compatible with the specified 2.25 V to 5.5 V operating range before integration into the design.

Selection Notes

Select this component when a high channel count is necessary within a single package footprint. It is appropriate for designs demanding both high data throughput and strict EMC immunity. Consider the bidirectional capability of the single reverse channel for feedback loops or status reporting in isolated communication networks.

Part Context

This part belongs to the ISO77xx family of digital isolators, which are designed for high reliability and low power consumption. The ISO7761 variant specifically addresses applications requiring multiple isolated signals without the board space penalty of discrete solutions. It complements other members like the ISO774x series by offering increased channel density.

Replacement Considerations

Direct pin-to-pin replacements within the same family include ISO7762DBQR, which offers a 4/2 channel configuration. For different channel counts, consider ISO7741DBQR (4 channels) or ISO7731DBQR (3 channels), ensuring isolation ratings and data rates remain compatible.