Texas Instruments

ISO7761DBQ

ISO7761DBQ Description

The ISO7761DBQ from Texas Instruments is a high-performance, 6-channel digital isolator designed for robust signal isolation in industrial and automotive applications. Utilizing capacitive coupling technology, it delivers reliable isolation up to 3000Vrms with a wide supply voltage range of 2.25V to 5.5V, making it versatile for mixed-voltage systems. This unidirectional isolator supports data rates up to 100Mbps, ensuring high-speed communication while maintaining signal integrity. Its 85kV/µs common-mode transient immunity (CMTI) and low pulse width distortion (4.9ns max) make it ideal for noisy environments. Packaged in a 16-pin SSOP tube, it meets ROHS3 and REACH compliance, ensuring environmental and safety standards.

ISO7761DBQ Features

• High-Speed Performance: 1.1ns/1.4ns rise/fall times and 16ns max propagation delay for minimal signal latency.
• Robust Isolation: 3000Vrms isolation and 85kV/µs CMTI for superior noise immunity in harsh conditions.
• Wide Voltage Range: Operates from 2.25V to 5.5V, compatible with 3.3V and 5V systems.
• Multi-Channel Design: 6 unidirectional channels provide flexible signal routing for complex systems.
• Low Power Consumption: No isolated power required, reducing system complexity.
• Reliable Packaging: MSL 2 (1 year) rated, ensuring long-term shelf life and durability.

ISO7761DBQ Applications

• Industrial Automation: Isolate PLCs, motor drives, and sensors in high-noise environments.
• Automotive Systems: Enhance safety in battery management (BMS) and CAN bus communications.
• Medical Equipment: Ensure patient safety in diagnostic and monitoring devices.
• Renewable Energy: Isolate inverters and power converters in solar/wind systems.
• Test & Measurement: Protect sensitive equipment from ground loops and voltage spikes.

Conclusion of ISO7761DBQ

The ISO7761DBQ stands out as a high-reliability digital isolator, combining speed, noise immunity, and flexibility for demanding applications. Its 3000Vrms isolation, 100Mbps data rate, and wide voltage range make it superior to older optocoupler-based solutions. Ideal for industrial, automotive, and medical systems, it ensures robust performance while meeting stringent safety standards. Texas Instruments' ISO776x series continues to set benchmarks in signal isolation technology.