ISO1176DWR

Overview

The ISO1176DWR is a digital isolator transceiver designed for isolated RS-485 and PROFIBUS applications. It integrates three unidirectional channels with capacitive coupling technology to provide electrical isolation. The device supports signaling rates up to 40 Mbps and offers a common-mode transient immunity of 25 kV/µs. It operates within a supply voltage range of 3.15 V to 5.5 V on the primary side and 4.75 V to 5.25 V on the secondary side. The component is housed in a 16-pin SOIC package with a width of 7.50 mm, suitable for surface mount installation across an operating temperature range of -40°C to 85°C.

Feature Summary

• Provides galvanic isolation between system sections using capacitive coupling technology
• Supports high-speed data transmission compliant with RS-485 and PROFIBUS standards
• Features high common-mode transient immunity for reliable operation in noisy environments

Applications

• Industrial automation systems requiring isolated communication links
• Programmable Logic Controller (PLC) input/output modules
• PROFIBUS network interfaces

Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel packaging configuration. Ensure compatibility with the required voltage levels and signal integrity specifications for the target application. Confirm RoHS compliance status and moisture sensitivity level requirements before procurement.

Selection Notes

Select this component when isolated RS-485 or PROFIBUS connectivity is required with high noise immunity. Consider the 16-pin SOIC footprint for board space constraints. Evaluate the 40 Mbps data rate capability against system throughput needs. Verify that the operating temperature range meets environmental conditions.

Part Context

This part belongs to the ISO1176 family of isolated transceivers manufactured by Texas Instruments. The family focuses on providing robust isolation for industrial communication protocols. The DWR suffix specifically denotes the reel-packaged version of the device, distinguishing it from tube-packaged variants like the ISO1176DW.

Replacement Considerations

ADM2486BRWZ is listed as a substitute option.