ISO7041DBQR

Overview

The ISO7041DBQR is an ultra-low power four-channel digital isolator from Texas Instruments, housed in a 16-SSOP package. It supports unidirectional data transmission at speeds up to 2 Mb/s with a propagation delay of 140 ns. The device operates on a supply voltage range of 2.25 V to 3.6 V and draws a typical operating current of 115.7 µA. It provides 3000 Vrms isolation via capacitive coupling and offers a common-mode transient immunity of 50 kV/µs. Certified for ATEX and IECEx hazardous locations, it functions within a temperature range of -55°C to 125°C.

Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• Certified for use in ATEX and IECEx hazardous area applications
• High common-mode transient immunity for noisy environments

Applications

• Hazardous area instrumentation and control systems
• Industrial process control isolated communication links
• Medical equipment requiring reinforced isolation

Procurement Notes

Verify the specific suffix 'DBQR' confirms the reel packaging and SSOP-16 form factor. Ensure the order matches the required ATEX/IECEx certification documentation if deploying in hazardous zones. Confirm the operating voltage range aligns with your system's 2.25 V to 3.6 V requirement. Check for RoHS compliance status in the latest datasheet revision before finalizing procurement.

Selection Notes

Select this component when high channel density (four channels) is needed alongside strict power constraints. It is appropriate for designs requiring certified hazardous area compliance without external barrier components. Consider the 16-SSOP package size for PCB layout constraints. Verify that the 2 Mb/s data rate meets your application's throughput needs.

Part Context

This part belongs to the ISO7041 family of digital isolators designed for robust signal transmission across isolation barriers. It utilizes capacitive coupling technology to provide electrical isolation between CMOS or LVCMOS digital logic interfaces. The series is engineered for applications demanding high reliability and low power dissipation in compact footprints.

Replacement Considerations

Check for ISO7041 variants with different suffixes for tape-and-reel versus tube packaging options. Verify compatibility with SN6501 or SN6505A devices if transformer-based isolation alternatives are being considered for similar power budgets.