onsemi

LM339AM

LM339AM Description

The LM339AM is a general-purpose comparator IC designed and manufactured by onsemi. This integrated circuit is housed in a 14-pin small outline package (SOP) and features four independent comparators. It is designed to operate over a wide supply voltage range, from 2V to 36V for single supply and ±1V to ±18V for dual supply configurations. The LM339AM offers a maximum input offset voltage of 2mV at 5V, ensuring high accuracy in voltage comparisons. Its low quiescent current of up to 2.5mA and low input bias current of 0.25µA at 5V make it suitable for applications where power consumption is a critical consideration.

LM339AM Features

• High Output Current: The LM339AM provides a typical output current of 18mA at 5V, making it capable of driving various loads without additional amplification.
• Low Quiescent Current: With a maximum quiescent current of 2.5mA, the LM339AM is ideal for low-power applications, contributing to energy efficiency.
• Wide Operating Voltage Range: The ability to operate from 2V to 36V (single supply) and ±1V to ±18V (dual supply) provides flexibility in various power supply environments.
• Low Input Offset Voltage: A maximum input offset voltage of 2mV at 5V ensures precise voltage comparisons, enhancing the accuracy of the comparator.
• Low Input Bias Current: The maximum input bias current of 0.25µA at 5V minimizes the impact of input currents on the circuit, improving stability and performance.
• Surface Mount Packaging: The 14SOP package type is suitable for surface mount technology, facilitating easy integration into modern printed circuit boards.
• Compliance and Safety: The LM339AM is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.

LM339AM Applications

The LM339AM is well-suited for a variety of applications due to its versatility and performance characteristics. Some specific use cases include:

• Signal Processing: Ideal for applications requiring precise signal level detection and comparison, such as in analog-to-digital converters and signal conditioning circuits.
• Power Management: Its low quiescent current makes it suitable for battery-operated devices and power management systems where minimizing power consumption is essential.
• Automotive Electronics: The wide operating voltage range and robust performance make it suitable for automotive applications, where voltage fluctuations and harsh operating conditions are common.
• Industrial Control Systems: The LM339AM can be used in industrial control systems for monitoring and controlling various parameters, such as temperature, pressure, and flow rates.
• Consumer Electronics: It can be employed in consumer electronics for functions like voltage monitoring, threshold detection, and signal amplification.

Conclusion of LM339AM

The LM339AM is a versatile and reliable general-purpose comparator IC that offers a combination of high performance and low power consumption. Its wide operating voltage range, low input offset voltage, and low quiescent current make it suitable for a broad range of applications, from signal processing to power management. Despite being marked as obsolete, the LM339AM remains a valuable component for designers seeking a robust and efficient comparator solution. Its compliance with REACH and RoHS3 standards ensures it meets environmental and safety requirements, making it a responsible choice for modern electronics design.