LM2901PWR in LM339 / LM393 Comparators Family
The LM2901PWR, manufactured by Texas Instruments, is a member of the industry-standard LM339/LM2901 family of quad differential comparators. These devices consist of four independent voltage comparators designed specifically to operate from a single power supply over a wide range of voltages. Known for their versatility and open-collector outputs, they allow for easy level-shifting and wired-OR logic interfacing. These components are ubiquitous in cost-sensitive analog signal monitoring and threshold detection applications across industrial and consumer electronics.
Variants in This Sub-Family
Variants within this sub-family primarily differ in their operating temperature ratings, packaging options, and input offset voltage specifications. For example, while the LM339 is rated for commercial temperatures, the LM2901 is qualified for industrial ranges (-40C to +125C). The 'PWR' suffix specifically denotes the thin shrink small-outline package (TSSOP), which offers a smaller footprint compared to standard SOIC or PDIP variants, catering to high-density PCB designs.
