STMicroelectronics

LM219N

LM219N Description

The LM219N is a general-purpose comparator IC designed by STMicroelectronics. This obsolete device features two independent comparators housed in a through-hole package, specifically a 14-pin DIP (Dual In-line Package) tube. The LM219N is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards. It operates within a wide supply voltage range of 5V to 30V for single supply and ±2.5V to ±15V for dual supply, making it versatile for various applications. The device has a maximum quiescent current of 11.5mA and a maximum input bias current of 0.5µA at ±15V. With a maximum input offset voltage of 4mV at ±15V, the LM219N provides accurate and reliable performance. Its moisture sensitivity level (MSL) is 1, indicating it can be stored indefinitely without special handling.

LM219N Features

• Dual Comparators: The LM219N includes two independent comparators, allowing for multiple signal comparisons within a single package, which reduces board space and component count.
• Wide Operating Voltage Range: With a supply voltage range of 5V to 30V for single supply and ±2.5V to ±15V for dual supply, the LM219N is suitable for a variety of power supply configurations.
• Low Quiescent Current: The maximum quiescent current of 11.5mA ensures efficient power usage, making it ideal for applications where power consumption is a critical factor.
• Low Input Bias Current: The maximum input bias current of 0.5µA at ±15V minimizes the loading effect on the input signal, ensuring accurate comparisons.
• Low Input Offset Voltage: The maximum input offset voltage of 4mV at ±15V guarantees high accuracy in signal comparison, making it suitable for precision applications.
• Through-Hole Packaging: The 14-pin DIP package is easy to mount on PCBs and is compatible with standard through-hole assembly processes.
• Environmental Compliance: The LM219N is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.

LM219N Applications

The LM219N is ideal for a range of applications due to its versatility and performance characteristics. Some specific use cases include:

• Signal Processing: The dual comparators can be used to process and compare multiple signals in real-time, making it suitable for applications such as audio processing, sensor signal conditioning, and data acquisition systems.
• Power Management: The wide operating voltage range and low quiescent current make the LM219N suitable for power management applications, such as battery monitoring and voltage regulation.
• Industrial Automation: The robust performance and environmental compliance make it suitable for industrial automation applications, including motor control, process control, and machine monitoring.
• Consumer Electronics: The LM219N can be used in consumer electronics for functions such as voltage level detection, signal thresholding, and error detection.

Conclusion of LM219N

The LM219N from STMicroelectronics is a versatile and reliable general-purpose comparator IC. Its dual comparators, wide operating voltage range, low quiescent current, and low input bias current make it suitable for a variety of applications. The through-hole packaging and environmental compliance further enhance its usability. While the LM219N is now obsolete, it remains a valuable component for existing designs and applications where its unique features and performance benefits are required.