LM339N

Overview

The LM339N is a precision quad voltage comparator IC, designed to compare two input voltages and output a digital signal indicating which is higher. This versatile chip is a staple in analog electronics, offering a wide supply voltage range and low offset voltage, making it ideal for voltage level sensing, signal conditioning, and threshold detection applications.

Key Features

• Quad Comparators: Contains four independent voltage comparators in a single 14-pin DIP package.
• Wide Supply Voltage Range: Operates from 2V to 36V (single supply) or ±1V to ±18V (dual supply).
• Low Input Offset Voltage: Typically 2mV, ensuring accurate comparisons.
• Low Input Bias Current: 25nA, minimizing loading on the signal source.
• Open-Collector Output: Allows for wired-OR connections and interface with various logic levels.
• Low Power Consumption: Suitable for battery-powered applications.
• Differential Input Voltage Range: Can handle input voltages up to the supply rail.

Technical Specifications

• Supply Voltage Range: 2V to 36V (single), ±1V to ±18V (dual)
• Input Offset Voltage: 2mV (typical)
• Input Bias Current: 25nA (typical)
• Output Current: 16mA (sink)
• Propagation Delay: 1.3μs (typical)
• Operating Temperature Range: 0°C to 70°C
• Package: 14-pin DIP

Applications & Use Cases

• Voltage Level Detection: Ideal for battery monitoring, over/under voltage protection, and power supply supervision.
• Signal Conditioning: Used in analog-to-digital converters (ADCs), zero-crossing detectors, and waveform shaping.
• Oscillators and Timers: Can be configured to create relaxation oscillators or pulse generators.
• Motor Control: In robotics, for current sensing and speed control feedback.
• Sensor Interfaces: For threshold detection in light, temperature, or pressure sensors.
• Educational Projects: A fundamental component for learning about comparators and analog circuit design.

What's Included

• 1x LM339N Quad Differential Comparator IC (14-pin DIP)

Compatibility

• Pin-Compatible: Standard LM339N pinout, compatible with most breadboards and prototyping boards.
• Logic Level Output: Open-collector output can be pulled up to any voltage up to 15V, making it compatible with TTL, CMOS, and microcontroller inputs.
• Replacement: Direct drop-in for LM339, LM339AN, and similar comparators.

MOKWN Recommendation

The LM339N is an essential component for any electronics enthusiast, student, or professional working on analog projects. Its versatility, low cost, and ease of use make it a must-have in your component kit. Whether you're building a robot, a power supply, or a sensor system, the LM339N will help you achieve precise voltage comparisons. Order today from MOKWN and get fast delivery anywhere in Egypt!