ISO7761FDBQR

Overview

The ISO7761FDBQR is a six-channel digital isolator from the ISO776x series by Texas Instruments, housed in an SSOP-16 package. It features unidirectional signal transmission with five forward channels and one reverse channel. The device operates on a supply voltage range of 2.25 V to 5.5 V and supports data rates up to 100 Mb/s. Key electrical parameters include a propagation delay of 11 ns, rise/fall times of 3.9 ns, and pulse width distortion of 0.4 ns. It provides reinforced insulation with an isolation voltage of 3000 Vrms and functions within a temperature range of -55°C to +125°C.

Feature Summary

• Provides robust electromagnetic compatibility performance for reliable signal integrity in noisy environments.
• Utilizes capacitive coupling technology to achieve reinforced insulation ratings between isolated circuits.
• Offers high-speed data transmission capabilities suitable for demanding industrial communication protocols.

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety isolation
• Power metering applications with high-voltage separation requirements

Procurement Notes

Verify that the specific SSOP-16 package matches your PCB footprint design constraints. Confirm the 3000 Vrms reinforced insulation rating aligns with your system's safety standards. Ensure the operating temperature range meets your environmental specifications. Check for moisture sensitivity handling requirements during assembly. Validate that the unidirectional channel configuration fits your signal flow architecture.

Selection Notes

Select this component when reinforced isolation is required rather than basic isolation. Consider the SSOP-16 package size if space is limited compared to wider SOIC options. Evaluate the 100 Mb/s data rate against your application's bandwidth needs. Compare power consumption figures if energy efficiency is critical for the design.

Part Context

This part belongs to the ISO776x family of high-speed digital isolators designed for robust EMC performance. It serves as a key solution for separating ground domains in mixed-signal systems. The family includes variants with different insulation ratings and package types to suit diverse industrial and automotive needs.

Replacement Considerations

Check for ISO7761FDWR for a SOIC-16 package alternative with similar electrical characteristics. Verify ISO7761FSDBQR if lower quiescent current is required for the same SSOP-16 form factor.