LM339ADBR

Product Overview

Category: Integrated Circuits (ICs)

Use: LM339ADBR is a quad voltage comparator that is commonly used in various electronic circuits for comparing voltages and making decisions based on the comparison results.

Characteristics: - Low power consumption - Wide supply voltage range - High input impedance - Open collector outputs - Fast response time

Package: SOIC-14

Essence: The LM339ADBR is an essential component in many electronic devices and systems where voltage comparison is required. It provides a reliable and efficient solution for voltage monitoring and decision-making processes.

Packaging/Quantity: The LM339ADBR is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 2V to 36V
• Input Offset Voltage: 2mV (maximum)
• Input Bias Current: 25nA (maximum)
• Response Time: 1.3μs (typical)
• Output Sink Current: 16mA (maximum)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM339ADBR has a total of 14 pins arranged as follows:

___________ VCC --| |-- GND IN(-) --| |-- OUT IN(+) --| |-- IN(-) | | | | IN(-) --| |-- OUT IN(+) --| |-- IN(-) | | | | IN(-) --| |-- OUT IN(+) --| |-- IN(-) | | | | IN(-) --| |-- OUT IN(+) --|___________|-- IN(-)

Functional Features

• Quad voltage comparator: The LM339ADBR consists of four independent voltage comparators, allowing for multiple voltage comparison operations simultaneously.
• Open collector outputs: The open collector outputs provide flexibility in connecting external components and allow for easy integration into various circuit designs.
• Wide supply voltage range: The LM339ADBR can operate within a wide range of supply voltages, making it suitable for different power supply configurations.
• Low power consumption: The IC consumes minimal power, making it energy-efficient and suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Versatile and widely used in various electronic circuits - High input impedance allows for easy interfacing with other components - Fast response time enables quick decision-making processes - Open collector outputs provide flexibility in circuit design

Disadvantages: - Limited output sink current may restrict certain applications requiring higher current handling capabilities - Input offset voltage may introduce errors in precision applications

Working Principles

The LM339ADBR compares the voltages applied to its input pins and produces corresponding output signals based on the comparison results. It operates by continuously monitoring the voltage levels at the input pins and comparing them against a reference voltage. When the voltage at the non-inverting input exceeds the voltage at the inverting input, the output switches to a low state (logic 0). Conversely, when the voltage at the inverting input is higher, the output remains high (logic 1).

Detailed Application Field Plans

The LM339ADBR finds extensive use in various applications, including but not limited to: - Voltage level detection and monitoring - Signal conditioning and amplification - Threshold detection and triggering - Motor control systems - Battery charging and protection circuits - Industrial automation and control systems

Detailed and Complete Alternative Models

• LM339N: DIP-14 package, similar functionality to LM339ADBR
• LM2901: Quad voltage comparator with lower power consumption
• LM393: Dual voltage comparator with open collector outputs
• LM311: Single high-speed voltage comparator with differential inputs

These alternative models offer similar functionality and can be used as substitutes for the LM339ADBR in various applications.

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