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The LP339MX/NOPB is an ultra-low power quad comparator manufactured by Texas Instruments. It features four independent voltage comparators designed for single-supply operation, drawing typically 60 µA of supply current. The device operates within a supply voltage range of 2 V to 36 V and supports rail-to-rail output swing. Key electrical parameters include an input offset voltage of 5 mV, an input bias current of 25 nA, and a response time of 8 µs. Each channel provides an output current capability of 20 mA. The component is housed in a 14-pin SOIC package and functions across a temperature range of 0°C to +70°C.
Verify the specific suffix 'NOPB' confirms lead-free compliance and RoHS status as per manufacturer documentation. Confirm the SOIC-14 package variant matches the intended PCB footprint. Ensure the operating temperature range meets system requirements. Cross-reference the datasheet revision to validate all electrical specifications against the latest official release before finalizing procurement.
Select this component when low quiescent current is critical compared to standard LM339 variants. The rail-to-rail output simplifies interfacing with logic families without additional pull-up resistors in many configurations. Consider the 8 µs response time suitability for the target application speed. Verify that the 20 mA sink/source capability meets load requirements without external buffering.
The LP339 series represents Texas Instruments' ultra-low power counterpart to the industry-standard LM339. While the LM339 offers higher drive current and faster response, the LP339 prioritizes minimal power consumption, making it suitable for energy-constrained applications. The MX/NOPB designation indicates the surface-mount SOIC package with lead-free and RoHS-compliant construction.
LM339N/NOPB: Higher power consumption but similar functionality. LM339MX-NOPB: Surface mount equivalent with higher current drive (6 mA) and faster response (1.3 µs). LP339D/NOPB: DIP package alternative with identical electrical characteristics.