DS26LS31MJ/883

Overview

The DS26LS31MJ/883 is a quad differential line driver designed for digital data transmission over balanced lines. It meets EIA Standard RS-422 and Federal Standard 1020 requirements, providing unipolar differential drive to twisted-pair or parallel-wire transmission lines. The device operates from a single 5V supply (4.5V to 5.5V) and features TRI-STATE outputs with an enable/disable function common to all four drivers. It includes glitch-free power up/down protection and output short-circuit protection. The component is housed in a 16-pin CDIP package and supports an operating temperature range of -55°C to +125°C.

Feature Summary

• Glitch-free power up/down protection prevents erroneous glitches on transmission lines by keeping outputs in a high impedance state during power transitions.
• Outputs do not load the line when VCC = 0V, ensuring isolation during power-off conditions.
• Complementary outputs are logically ANDed, and inputs are LS compatible with a unit load specification.
• Output short-circuit protection safeguards the device against direct shorts to ground or supply.

Applications

• Digital data transmission over balanced twisted-pair lines
• Parallel-wire transmission line systems
• RS-422 compliant interface circuits

Procurement Notes

Verify that the specific ordering suffix /883 corresponds to the required MIL-STD-883 qualification level and radiation hardness specifications. Confirm the package type matches the design constraints, as this part number specifically denotes the CDIP variant. Ensure compliance with RoHS exemptions if applicable to the manufacturing batch.

Selection Notes

Select this component when a quad differential driver is required for RS-422 applications in harsh environments. It is suitable for designs needing TRI-STATE control and robust power-up protection. Consider the thermal resistance and power dissipation limits relative to the ambient temperature and PCB layout.

Part Context

This component belongs to the DS26LS31MQML family, which includes variants such as DS26LS31ME-SMD and DS26LS31MW/883. These parts share identical electrical characteristics but differ in package styles, including LCCC and CFP options. The MJ/883 designation specifically identifies the ceramic dual in-line package configuration within this radiation-hardened series.

Replacement Considerations

Pin-compatible alternatives include the AM26LS31MWB and other members of the DS26LS31MQML family like the DS26LS31ME-SMD. Verify that any substitute maintains the same radiation tolerance and MIL-STD-883 qualification levels if used in critical applications.