LM139AWGRQMLV

Overview

The LM139AWGRQMLV is a quad differential comparator from Texas Instruments, designed for military and aerospace applications. It features rail-to-rail output capability and operates on a single supply voltage ranging from 2 V to 36 V. The device draws a typical operating supply current of 500 uA per channel. Key electrical specifications include an input offset voltage of 2 mV, an input bias current of 100 nA, and a response time of 40 ns. It supports a maximum output sink current of 6 mA and functions within a temperature range of -55°C to +125°C.

Feature Summary

• Qualified for military and aerospace environments under QML standards
• Provides rail-to-rail output swing for maximum dynamic range
• Features low power consumption with minimal quiescent current draw
• Offers high-speed performance with fast response times

Applications

• Military avionics systems requiring radiation-hardened or qualified components
• Aerospace instrumentation and control circuits
• High-reliability industrial monitoring equipment
• Precision voltage threshold detection in harsh environments

Procurement Notes

Verify the specific suffix (AWGRQMLV) against the manufacturer's official datasheet to confirm QML qualification status and pinout compatibility. Ensure that the ordering documentation explicitly states compliance with relevant military specifications. Cross-reference the lot traceability requirements with your organization's quality assurance protocols before finalizing procurement orders.

Selection Notes

Select this component when system reliability in extreme temperatures is critical. The rail-to-rail output allows for direct interfacing with digital logic without additional level shifting. Consider the 2 mV offset voltage for precision applications where signal integrity is paramount. Verify that the 36 V maximum supply voltage aligns with the target circuit design constraints.

Part Context

This part belongs to the LM139 family of low-power, low-offset voltage quad comparators. The AWGRQMLV designation indicates a specific package variant qualified for military use. It shares functional similarities with standard commercial LM139 devices but adheres to stricter manufacturing and testing standards required for defense and space applications.

Replacement Considerations

Direct substitutes include other QML-qualified quad comparators from Texas Instruments such as the LM139AWRLQMLV. Verify pin compatibility and thermal characteristics before substitution. Commercial equivalents like the standard LM139DR lack the necessary environmental qualifications for military use.