LM3302N

Overview

The LM3302N is a quad voltage comparator manufactured by Texas Instruments, housed in a 14-pin PDIP package. It features four independent differential comparators designed for single or dual power supply operation within a range of 2V to 28V. Key electrical parameters include a typical response time of 300ns, an input bias current of 500nA maximum, and an input offset voltage of 20mV maximum. The device operates across a temperature range of -40°C to +85°C and supports CMOS, MOS, Open Collector/Drain, and TTL output compatibility.

Feature Summary

• Supports single or dual power supply configurations with wide voltage tolerance
• Outputs compatible with standard logic families including TTL, MOS, and CMOS
• Allows wired-AND connection of open-collector outputs

Applications

• General purpose analog signal comparison
• Voltage level detection circuits
• Logic interface adapters between different voltage domains

Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure the ordering code corresponds to the PDIP-14 package variant. Cross-reference the RoHS compliance status with current regulatory standards before finalizing procurement orders.

Selection Notes

Select this component when high-speed precision is not critical but wide supply voltage flexibility is required. The LM3302N is suitable for applications where output interfacing with multiple logic families is necessary. Consider the 300ns propagation delay when designing timing-sensitive circuits compared to faster comparator alternatives.

Part Context

This part belongs to the LM3302 series of quad comparators from Texas Instruments. It shares functional similarities with the LM339 and LM2901 but offers distinct output drive capabilities. The N suffix specifically denotes the plastic DIP package format, distinguishing it from surface-mount variants like the DR suffix.

Replacement Considerations

LM3302DR serves as the surface-mount equivalent. LM339 and LM2901 are functionally similar quad comparators but may differ in specific electrical limits or output structures.