LM339N/PB

Overview

The LM339N/PB is a quad analog comparator manufactured by Texas Instruments, housed in a 14-pin PDIP package. It operates on a single supply voltage ranging from 2 V to 36 V or dual supplies of ±1 V to ±18 V. The device features four independent differential comparators with rail-to-rail output capability. Key electrical parameters include a maximum input offset voltage of 5 mV, an input bias current of 250 nA, and a typical response time of 700 ns. Each channel can source up to 6 mA of output current while maintaining a low operating supply current.

Feature Summary

• Integrates four independent high-gain voltage comparators within a single integrated circuit
• Provides open-collector outputs that swing to ground, enabling direct interfacing with various logic families
• Operates effectively across a wide range of single or split power supply voltages

Applications

• Temperature monitoring systems using sensor interfaces
• Over-voltage and under-voltage protection circuits
• Simple DC-to-DC converter control loops

Procurement Notes

Verify the specific suffix configuration against the manufacturer's official documentation to ensure compatibility with required pinout and electrical specifications. Confirm RoHS compliance status and lead times directly with authorized distributors prior to procurement. Ensure the selected package variant matches the intended PCB footprint requirements for reliable assembly.

Selection Notes

Select this component when multiple independent comparison functions are required within a compact form factor. The wide supply voltage range makes it suitable for both low-power battery applications and standard industrial voltage levels. Consider the open-collector output structure when designing pull-up resistor networks for the target logic interface.

Part Context

This part belongs to the LM339 family of low-power quad comparators produced by Texas Instruments. It serves as a general-purpose solution for analog signal processing tasks requiring voltage threshold detection. The PDIP-14 package facilitates through-hole mounting for prototyping and robust industrial applications.

Replacement Considerations

Compatible substitutes include the LM339AN/NOPB and LM339MX-NOPB. Verify pin compatibility and electrical characteristics before substitution.