LM339NE4

Overview

The LM339NE4 is a quad differential voltage comparator manufactured by Texas Instruments, housed in a 14-pin PDIP package. It features four independent comparators with open-collector outputs designed for single-supply operation. The device supports a supply voltage range from 2 V to 30 V and includes ground in its common-mode input voltage range. Key electrical characteristics include a maximum supply current of 500 µA, an output sink capability of 6 mA per channel, and a typical propagation delay of 1.3 µs.

Feature Summary

• Quad differential input configuration providing four independent comparison channels within a single integrated circuit
• Open-collector output architecture enabling flexible wired-AND logic connections and compatibility with various logic families
• Single-supply operation capability with input common-mode voltage range extending to ground potential

Applications

• Overvoltage and undervoltage detection circuits
• Analog-to-digital conversion interfaces
• Level shifting and logic interface applications

Procurement Notes

Verify the specific suffix 'NE4' against the manufacturer's official documentation to confirm compliance details and pinout consistency. Ensure the procurement source provides valid traceability for the PDIP-14 package type. Cross-reference the ordering information with the latest datasheet revision to avoid discrepancies in electrical specifications or mechanical dimensions.

Selection Notes

Select this component when multiple independent voltage comparisons are required in a single-supply environment. The open-collector outputs allow direct interfacing with digital logic without additional pull-up resistors if internal ones are available. Consider the 1.3 µs propagation delay for timing-sensitive applications and verify that the 6 mA output current meets the load requirements.

Part Context

The LM339NE4 belongs to the LMx39 family of quad comparators, which also includes variants like the LM239N and LM339AN. These devices share similar functional architectures but may differ in temperature ranges, precision grades, or packaging options. The NE4 designation typically indicates a lead-free variant compliant with specific environmental standards compared to older non-compliant versions.

Replacement Considerations

LM339N serves as a standard industry equivalent. LM239N offers similar functionality with potentially different temperature ratings. LM339PWRE4 provides the same electrical performance in a surface-mount TSSOP-14 package.