onsemi

LM239NG  

Linear Comparators

LM239NG Description

The LM239NG is a general-purpose comparator IC designed by onsemi, featuring four independent comparators in a through-hole package. This IC is known for its robust performance and versatile applications, making it a reliable choice for a variety of electronic circuits. Despite being marked as obsolete, the LM239NG continues to be a popular choice due to its unique features and performance benefits. The device operates over a wide supply voltage range of 3V to 36V for single supply and ±1.5V to ±18V for dual supply, ensuring compatibility with a broad range of power sources. It also boasts a low input bias current of up to 0.25µA at 5V and a maximum quiescent current of 2.5mA, contributing to its energy efficiency.

LM239NG Features

• Wide Operating Voltage Range: The LM239NG can operate with a supply voltage ranging from 3V to 36V for single supply and ±1.5V to ±18V for dual supply, making it suitable for a wide array of applications.
• Low Input Bias Current: With a maximum input bias current of 0.25µA at 5V, the LM239NG ensures minimal loading on the input signal sources.
• Low Quiescent Current: The maximum quiescent current of 2.5mA ensures that the device consumes minimal power, making it suitable for low-power applications.
• High Output Current: The LM239NG can deliver a typical output current of 16mA at 5V, allowing it to drive a variety of loads effectively.
• Low Input Offset Voltage: The maximum input offset voltage of 5mV at 5V ensures high accuracy in signal comparison.
• Through-Hole Mounting: The through-hole package type facilitates easy installation and robust mechanical stability on printed circuit boards.
• REACH Compliance: The LM239NG is REACH unaffected, ensuring compliance with environmental regulations and making it suitable for global markets.
• Moisture Sensitivity Level: With an MSL rating of 1 (unlimited), the LM239NG is highly resistant to moisture, reducing the risk of damage during manufacturing processes.

LM239NG Applications

The LM239NG is ideal for applications requiring high accuracy and reliability in signal comparison. Its wide operating voltage range and low power consumption make it suitable for both low-power and high-voltage applications. Some specific use cases include:

• Signal Processing: The LM239NG can be used to compare analog signals in various signal processing circuits, ensuring precise control and decision-making.
• Power Management: Its ability to operate over a wide voltage range makes it suitable for power management applications, where it can monitor and control power levels effectively.
• Automotive Electronics: The robustness and reliability of the LM239NG make it suitable for automotive applications, where it can be used for monitoring and control functions.
• Industrial Control Systems: The LM239NG can be employed in industrial control systems for monitoring and controlling various parameters, precise ensuring and reliable operation.
• Consumer Electronics: In consumer electronics, the LM239NG can be used for signal comparison and control functions, contributing to the overall performance and reliability of the device.

Conclusion of LM239NG

The LM239NG is a versatile and reliable general-purpose comparator IC that offers a wide range of features and benefits. Its wide operating voltage range, low input bias current, and low quiescent current make it suitable for a variety of applications, from low-power to high-voltage systems. The through-hole package ensures easy installation and robust mechanical stability, while its REACH compliance and moisture sensitivity level make it suitable for global markets and manufacturing processes. Despite being marked as obsolete, the LM239NG remains a popular choice due to its unique features and performance benefits, making it an ideal solution for a wide range of electronic applications.

LM239NG Documents

Download datasheets and manufacturer documentation for LM239NG