STMicroelectronics

LM193N

LM193N Description

The LM193N is a general-purpose comparator designed by STMicroelectronics, featuring a robust set of technical specifications that make it suitable for a wide range of applications. This IC is housed in a through-hole package, specifically an 8-pin DIP (Dual In-line Package), which facilitates easy integration into various electronic circuits. Despite being marked as obsolete, the LM193N remains a reliable choice for designers looking for a versatile comparator solution.

LM193N Features

• General Purpose Comparator: The LM193N is designed for general-purpose applications, offering a balance of performance and versatility.
• Low Quiescent Current: With a maximum quiescent current of 2.5mA, the LM193N is energy-efficient, making it suitable for battery-operated devices.
• Wide Operating Voltage Range: The comparator operates from a single supply voltage of 2V to 36V or dual supplies of ±1V to ±18V, providing flexibility in power supply options.
• Low Input Bias Current: The maximum input bias current is 0.25µA at 5V, ensuring minimal loading on the input sources.
• Low Input Offset Voltage: The maximum input offset voltage is 5mV at 30V, which contributes to high accuracy in voltage comparisons.
• High Output Current: The LM193N can source up to 18mA at 5V, allowing it to drive a variety of loads directly.
• Compliance and Packaging: The LM193N is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It is packaged in a tube, which protects the components during shipping and storage.
• Moisture Sensitivity Level: With an MSL of 1 (unlimited), the LM193N is suitable for use in environments with varying humidity levels.

LM193N Applications

The LM193N's versatility makes it suitable for a variety of applications in the electronics industry:

• Signal Processing: The LM193N can be used to compare input signals and generate output signals based on predefined thresholds, making it ideal for signal processing applications.
• Power Management: Its low quiescent current and wide operating voltage range make it suitable for power management circuits, where energy efficiency is crucial.
• Analog-to-Digital Conversion: The comparator can be used in analog-to-digital converters to digitize analog signals by comparing them to reference voltages.
• Battery Monitoring: The LM193N can monitor battery levels by comparing the battery voltage to a reference voltage, providing an indication of the battery's state of charge.
• Level Shifting: The comparator can be used to shift voltage levels in mixed-signal circuits, ensuring compatibility between different parts of the system.

Conclusion of LM193N

The LM193N, despite being marked as obsolete, remains a valuable component in the electronics industry due to its robust technical specifications and wide range of applications. Its low quiescent current, wide operating voltage range, and low input offset voltage make it an energy-efficient and accurate solution for general-purpose comparator needs. The LM193N's compliance with environmental and safety standards further enhances its appeal. While newer alternatives may offer advanced features, the LM193N continues to be a reliable choice for designers seeking a proven and versatile comparator solution.