DS3487MX

Overview

The DS3487MX is a quad TRI-STATE line driver manufactured by Texas Instruments, designed for RS-422 communication interfaces. It operates within a supply voltage range of 4.75 V to 5.25 V, with a typical operating voltage of 5 V. The device supports data rates up to 10 Mb/s and features a propagation delay of 10 ns. It draws a maximum operating supply current of 80 mA and dissipates up to 1.051 W of power. The output voltage reaches 2 V, and it functions reliably across an ambient temperature range of 0°C to +70°C. Packaged in a 16-pin SOIC-Narrow (SOIC-N) surface-mount format, this component provides four drivers without integrated receivers or shutdown capabilities.

Feature Summary

• Quad TRI-STATE line driver configuration supporting RS-422 differential signaling standards
• High-speed data transmission capability reaching 10 Mb/s with low propagation delay
• TRI-STATE outputs allow multiple drivers to share transmission lines without interference

Applications

• RS-422 balanced digital interface circuits
• Multi-drop communication bus systems
• Industrial control network nodes requiring differential signaling

Procurement Notes

Verify the specific suffix MX against official datasheets to confirm package type and temperature grade. Confirm end-of-life status as some sources indicate discontinuation. Ensure compatibility with existing PCB footprints for 16-SOIC packages before procurement planning.

Selection Notes

Select this component when a quad driver is required for RS-422 applications without receiver integration. Compare against the MC3487 series for industrial temperature variants if operation below 0°C is needed. Verify that the absence of a shutdown pin aligns with system power management requirements.

Part Context

The DS3487MX belongs to the DS3487 family of RS-422 interface ICs from Texas Instruments. It serves as a high-speed transmitter counterpart to receiver components like the DS3486. The part is distinct from the MC3487 series, which typically offers extended temperature ranges for industrial environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consider checking Texas Instruments' official replacement guides for discontinued items.