10 Pieces LM339 DIP-14 Quad Differential Comparator

Description

Product Overview

The LM339 quad differential comparator is engineered to meet the demanding requirements of modern industrial and scientific applications. Housed in a sturdy DIP-14 plastic package, each unit offers four independent comparator channels that can monitor voltage differences with high precision. The device operates over a wide supply voltage range, making it adaptable to both low‑power and higher‑voltage environments. Its open‑collector outputs provide flexibility for interfacing with a variety of logic families, while the internal temperature compensation ensures stable performance across temperature extremes. The 10‑piece lot from HUABAN guarantees consistent quality, and each comparator is tested to meet the stringent specifications outlined in the datasheet. With a compact footprint of 4.61 x 3.11 x 0.47 inches and a weight of just 0.35 ounces, the LM339 can be easily incorporated into dense circuit boards without sacrificing reliability. Whether you are designing sensor interfaces, analog‑to‑digital conversion front‑ends, or protective circuitry, this component delivers the accuracy and durability required for long‑term operation.

Usage

Designed for versatility, the LM339 finds its place in a broad spectrum of real‑world scenarios. In industrial automation, it can be used to monitor voltage levels from transducers, providing critical feedback for motor control and safety shutdown systems. In laboratory equipment, the comparator serves as a reliable building block for threshold detection, enabling precise triggering of measurement instruments. Hobbyists and educators benefit from its straightforward pinout, making it an ideal teaching tool for illustrating analog signal processing concepts. The component’s ability to operate from a single supply voltage simplifies power management in portable devices, such as handheld diagnostic tools and battery‑powered sensor nodes. Its open‑collector outputs allow easy connection to microcontroller inputs, facilitating seamless integration into embedded systems that require real‑time voltage comparison. The LM339 also excels in audio applications, where it can be employed to create noise‑gate circuits or to detect signal clipping, ensuring high‑fidelity sound reproduction. Overall, the comparator’s robust design and flexible interfacing options make it suitable for any project that demands reliable voltage discrimination.

Why Choose Us

When selecting a comparator for critical applications, quality and support are paramount. HUABAN’s LM339 series is manufactured under strict quality‑control processes, guaranteeing each part meets or exceeds industry standards. Our components undergo comprehensive electrical testing, thermal cycling, and reliability screening to ensure long‑term stability even in harsh environments. In addition to the superior hardware, we provide detailed documentation, including full datasheets, application notes, and reference designs, empowering engineers to accelerate development cycles. Our responsive technical support team is available to assist with schematic reviews, layout recommendations, and troubleshooting, ensuring you get the most out of every device. We also offer flexible packaging options, allowing you to order the exact quantity you need, whether it’s a single prototype batch or a large production run. With a proven track record reflected in a 4.1‑star rating from satisfied customers, HUABAN stands out as a trusted partner for electronic components. Choosing our LM339 means you receive a product that combines performance, durability, and comprehensive after‑sales service—all backed by a reputable manufacturer dedicated to your success.

Key Features

• Four independent comparator channels deliver reliable voltage discrimination for complex signal processing tasks.
• Wide supply voltage range enables operation in both low‑power and higher‑voltage systems, enhancing design flexibility.
• Open‑collector outputs provide easy interfacing with diverse logic families and microcontroller inputs.
• Compact DIP‑14 package saves board space while maintaining robust mechanical strength for industrial use.
• Comes with dedicated technical support and comprehensive documentation to streamline integration and troubleshooting.

FAQ

What is the maximum input voltage range for the LM339 comparator?

The LM339 can handle input voltages from ground up to the supply voltage (VCC). This wide range allows it to be used with both single‑supply and dual‑supply configurations, making it adaptable to many circuit designs.

Can the LM339 be used with modern microcontrollers that operate at 3.3 V?

Yes. The comparator’s open‑collector output stage can be pulled up to 3.3 V using an external resistor, ensuring compatibility with low‑voltage microcontrollers while preserving its high‑speed switching characteristics.

How does temperature affect the performance of the LM339?

The LM339 includes internal temperature compensation circuitry that minimizes drift over a broad temperature range. This feature ensures consistent threshold detection and reliable operation from –40 °C to +125 °C.

Is the LM339 suitable for audio applications such as noise gating?

Absolutely. Its fast response time and low offset voltage make it ideal for detecting audio signal thresholds, allowing designers to create effective noise‑gate circuits that protect speakers and improve sound quality.

What warranty or after‑sales support does HUABAN provide for the LM339?

HUABAN offers a standard one‑year warranty covering manufacturing defects, along with access to a knowledgeable technical support team. Customers can receive assistance with design queries, replacement parts, and detailed application guidance.