Texas Instruments/National Semiconductor LM339N LM339 Quad Comparator ICs (Pack of 8)

Description

Product Overview

The Texas Instruments LM339N quad comparator is a versatile integrated circuit that combines four independent comparators into a single, space‑saving package. Each comparator operates with low power consumption while delivering high‑speed response, making it suitable for a broad range of industrial and scientific applications. The device is housed in a compact 8‑IC pack measuring 6.02 x 2.05 x 0.47 inches and weighing only 0.32 ounces, which simplifies board layout and reduces overall system weight. Designed with robust silicon technology, the LM339N provides reliable performance across a wide temperature range, ensuring consistent operation in harsh environments. Its open‑collector outputs allow easy interfacing with various logic families, and the input voltage range accommodates both single‑ended and differential signal configurations.

Usage

Engineers and designers frequently employ the LM339N in applications that require precise voltage monitoring, such as power‑supply regulation, battery management, and sensor signal conditioning. The low‑power nature of the comparators makes them ideal for battery‑operated devices, while the high‑speed switching capability supports fast transient detection in motor control and automation systems. Because the device can handle a variety of input signal levels, it is also well‑suited for interfacing with temperature sensors, light detectors, and other analog transducers in industrial monitoring equipment. The compact 8‑IC pack format enables easy integration into dense PCB designs, reducing board real estate and simplifying assembly processes.

Why Choose Us

Choosing the LM339N from Texas Instruments means selecting a component backed by decades of semiconductor expertise and a reputation for quality. The device undergoes rigorous testing to meet industry standards for reliability, ensuring long‑term performance in mission‑critical systems. Our distribution network guarantees fast, dependable delivery, and we provide comprehensive technical support to assist with design verification, layout optimization, and troubleshooting. In addition, the LM339N benefits from a well‑documented reference design library, enabling rapid prototyping and reducing time‑to‑market for new products. With a proven track record in both industrial and scientific sectors, this comparator series offers the confidence needed for high‑volume production runs.

Key Features

• Four low‑power comparators in a single package reduce board space and component count.
• High‑speed response ensures accurate detection of rapid voltage changes.
• Wide operating temperature range supports reliable performance in harsh environments.
• Open‑collector outputs provide flexible interfacing with diverse logic families.
• Comprehensive technical support and fast shipping for seamless project development.

FAQ

What is the maximum input voltage range for the LM339N?

The LM339N can handle input voltages from 0 V up to the supply voltage (VCC), making it compatible with a variety of signal levels in both single‑ended and differential configurations.

Can the LM339N be used in battery‑powered applications?

Yes, its low‑power design minimizes current draw, which is ideal for battery‑operated devices and extends overall system runtime.

How does the open‑collector output benefit my circuit design?

Open‑collector outputs allow you to pull the output low with the comparator and let an external pull‑up resistor define the high level, providing flexibility to match different voltage levels and logic families.

Is the LM339N suitable for temperature sensor interfacing?

Absolutely. The comparator’s precision and ability to handle small voltage differences make it an excellent choice for conditioning signals from thermistors, RTDs, and other temperature sensors.

What packaging options are available for the LM339N?

The LM339N is offered in an 8‑IC pack, which includes eight individual comparator chips, simplifying inventory management and reducing overall cost for high‑volume applications.