DS26LS31CMX

Overview

The DS26LS31CMX is a quad high-speed differential line driver manufactured by Texas Instruments, designed for digital data transmission over balanced lines. It meets EIA Standard RS-422 and Federal Standard 1020 requirements. The device operates from a single 5V supply with a voltage range of 4.75V to 5.25V. It features TRI-STATE outputs, complementary outputs, and an enable/disable function common to all four drivers. The inputs are LS-compatible and represent one unit load. Typical performance includes an output skew of 2.0 ns and an input-to-output delay of 10 ns at VCC = 5V and TA = 25°C.

Feature Summary

• Provides unipolar differential drive to twisted-pair or parallel-wire transmission lines
• Features TRI-STATE outputs that do not load the line when VCC is 0V
• Includes four line drivers in one package for maximum density
• Offers output short-circuit protection

Applications

• Digital data transmission over balanced lines
• RS-422 communication systems
• Federal Standard 1020 compliant applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and environmental compliance. Confirm availability status as product lifecycles may change. Ensure the selected variant matches the required operating temperature range and packaging format for your design.

Selection Notes

Select this component for designs requiring RS-422 compliant differential signaling with high speed and low skew. Verify that the system power supply remains within the 4.75V to 5.25V range. Consider the SOIC-16 package constraints and thermal dissipation requirements relative to the application environment.

Part Context

This part belongs to the DS26LS31 family of quad differential line drivers. It is pin-compatible with the AM26LS31 series. The 'CM' designation typically indicates a commercial temperature range (0°C to +70°C) and surface-mount packaging, distinguishing it from military-grade variants like the DS26LS31M.

Replacement Considerations

The datasheet explicitly states the device is pin compatible with the AM26LS31. Designers should verify electrical characteristics match their specific requirements when substituting.