Texas Instruments

LM239D  

Linear Comparators

LM239D Description

The LM239D is a general-purpose linear comparator designed by Texas Instruments, featuring four differential comparators in a single package. This IC is ideal for a wide range of applications that require precise voltage comparison and signal processing. The LM239D operates within a broad supply voltage range of 2V to 30V for single supply and ±1V to ±15V for dual supply, making it versatile for various electronic systems. It offers a maximum input offset voltage of 5mV at 30V, ensuring high accuracy in voltage comparison. The device also boasts a low quiescent current of 2mA and an input bias current of 0.25µA at 5V, which minimizes power consumption and enhances efficiency.

LM239D Features

• High Input Voltage Range: The LM239D can handle a wide input voltage range, from 2V to 30V for single supply and ±1V to ±15V for dual supply, making it suitable for diverse applications.
• Low Offset Voltage: With a maximum input offset voltage of 5mV at 30V, the LM239D ensures high accuracy in voltage comparison, crucial for precision applications.
• Low Power Consumption: The comparator has a low quiescent current of 2mA and an input bias current of 0.25µA at 5V, which reduces power consumption and enhances overall system efficiency.
• Surface Mount Technology: The LM239D is available in a surface mount package, which facilitates easy integration into modern PCB designs and supports high-density layouts.
• Compliance and Safety: The LM239D is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1, making it suitable for various manufacturing environments.
• High Output Current: The comparator can deliver a typical output current of 20mA, which is sufficient for driving various loads and interfacing with other electronic components.

LM239D Applications

The LM239D is well-suited for a variety of applications where precise voltage comparison and signal processing are required. Some specific use cases include:

• Analog Signal Processing: Ideal for applications that require accurate voltage level detection and comparison, such as in analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
• Power Management: Useful in power supply circuits for monitoring and controlling voltage levels, ensuring stable and reliable power delivery.
• Automotive Electronics: Suitable for automotive applications where robust and reliable voltage comparison is needed, such as in engine control units (ECUs) and battery management systems.
• Industrial Control Systems: The LM239D can be used in industrial automation for monitoring and controlling various parameters, such as temperature, pressure, and flow rates.
• Consumer Electronics: In consumer electronics, the LM239D can be employed for voltage monitoring and protection circuits, ensuring the safe operation of devices.

Conclusion of LM239D

The LM239D from Texas Instruments is a versatile and reliable linear comparator that offers high accuracy, low power consumption, and a wide operating voltage range. Its low offset voltage and input bias current make it ideal for precision applications, while its surface mount package and compliance with environmental standards ensure ease of integration and safety. The LM239D is suitable for a wide range of applications, including analog signal processing, power management, automotive electronics, industrial control systems, and consumer electronics. Its robust performance and unique features provide significant advantages over similar models, making it a preferred choice for engineers and designers in the electronics industry.

LM239D Documents

Download datasheets and manufacturer documentation for LM239D

EOL :

Product Discontinuance Notification (PDF)      

Images :

Mechanical Outline Drawing      

PCN :

Process Change Notification (PDF)       Product Change Notification (PDF)      

SPICE Models :

LM239 PSpice Model