DS26LS31MW/883

Overview

The DS26LS31MW/883 is a quad high-speed differential line driver from the DS26LS31MQML series, manufactured by Texas Instruments. Designed for digital data transmission over balanced lines, it complies with EIA Standard RS-422 and Federal Standard 1020. The device operates within a supply voltage range of 4.5 V to 5.5 V, typically at 5 V, with a maximum operating supply current of 60 mA. It features TRI-STATE outputs and a common enable/disable function for all four drivers. The component is housed in a 16-CFP ceramic package and supports an extended industrial temperature range from -55°C to +125°C.

Feature Summary

• Provides unipolar differential drive capability for twisted-pair or parallel-wire transmission lines.
• Integrates TRI-STATE outputs to facilitate bus sharing and system flexibility.
• Includes a unified enable and disable control function shared across all four internal drivers.

Applications

• Digital data transmission systems requiring RS-422 compliance.
• Military and aerospace applications adhering to Federal Standard 1020.
• High-speed differential signaling interfaces in harsh environmental conditions.

Procurement Notes

Verify authenticity through authorized channels, as this part may be subject to limited supply or special factory orders. Confirm that the specific suffix /883 denotes the required military-grade qualification and ceramic packaging. Check for recent Product Change Notifications (PCNs) to ensure continuity of specifications. Validate that the component meets RoHS non-compliant status if leaded solder is required for the application.

Selection Notes

Select this component when a quad differential driver with TRI-STATE outputs is required for RS-422 networks. Ensure the design accommodates the 16-CFP ceramic package dimensions and thermal characteristics. Verify that the system power supply remains within the 4.5 V to 5.5 V range to maintain proper logic levels. Consider the 60 mA supply current for power budget calculations in multi-driver configurations.

Part Context

This device belongs to the DS26LS31MQML family, which includes variants such as the DS26LS31MJ/883 in CDIP packaging. While the MJ variant uses a ceramic dual in-line package, the MW variant utilizes a ceramic flat pack. Both share identical electrical characteristics and are designed for high-reliability applications. The MQML series is distinct from commercial counterparts like the AM26LS31, offering enhanced ruggedness.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific military-grade ceramic variant are not available in the provided documentation. Commercial equivalents such as the AM26LS31MWB exist but differ in qualification standards and packaging. Direct replacement requires verifying that the alternative meets Federal Standard 1020 and MIL-STD-883 requirements.