LM339DRE4 in LM339 / LM393 Comparators Family
The LM339DRE4 is part of the iconic LM339 family of quad differential comparators manufactured by Texas Instruments and other leading semiconductor suppliers. Designed to operate from a single power supply over a wide range of voltages, these devices utilize a high-gain, open-collector architecture. They are ubiquitous in industrial and consumer electronics for tasks involving voltage level detection, zero-crossing sensing, and simple analog-to-digital conversions where cost-effectiveness and reliability are prioritized over extreme precision or high-speed switching.
Variants in This Sub-Family
Variants within the LM339 sub-family primarily differ by their environmental ratings, packaging options, and lead finishes. The 'E4' suffix specifically denotes a Green (RoHS & no Sb/Br) component with NiPdAu lead finish. Other variations like the LM339-N or LM339A offer tighter input offset voltage specifications or extended temperature ranges for automotive and aerospace applications, while package types range from standard SOIC to TSSOP for space-constrained designs.
