LM339NE3

Overview

The LM339NE3 is a quad differential comparator manufactured by Texas Instruments, housed in a 14-pin Plastic Dual In-Line Package (PDIP). It operates within a supply voltage range of 2V to 36V or ±1V to ±18V. The device features an open-collector output configuration with a maximum output current of 16mA at 5V. Key electrical parameters include a maximum input offset voltage of 5mV and a typical operating supply current of 2mA. The component supports a response time of 1.3µs and functions reliably across a temperature range of 0°C to 70°C.

Feature Summary

• Integrates four independent differential comparators within a single package for space-efficient circuit design.
• Features an open-collector output structure compatible with various logic families and pull-up configurations.
• Operates on a wide single or dual power supply range, accommodating diverse system voltage requirements.

Applications

• Temperature monitoring systems utilizing sensor threshold detection
• Over-voltage protection circuits requiring precise level comparison
• Logic interface adapters converting analog signals to digital levels

Procurement Notes

Verify the specific suffix 'E3' indicates lead-free composition and RoHS compliance status as per manufacturer documentation. Confirm the PDIP-14 package dimensions match your PCB footprint requirements. Ensure the operating environment remains within the specified commercial temperature limits of 0°C to 70°C for reliable performance.

Selection Notes

Select this component when multiple independent voltage comparisons are required in a through-hole assembly. Consider the open-collector output limitations regarding pull-up resistor selection and switching speed. Evaluate the 5mV input offset voltage specification against the minimum signal difference expected in your application to ensure accurate threshold detection without false triggering.

Part Context

This part belongs to the LM339 family of low-power quad comparators from Texas Instruments. It serves as a direct pin-compatible alternative to standard LM339 variants, distinguished primarily by its lead-free manufacturing process. The device maintains identical functional characteristics to its non-E3 counterparts while adhering to environmental compliance standards.

Replacement Considerations

LM339N is a verified equivalent part number offering identical functionality and pinout. LM339AN/NOPB provides similar specifications with potentially tighter offset voltage tolerances. Verify package compatibility and thermal characteristics when substituting with surface-mount variants like LM339MX-NOPB.