onsemi

LM2901N

LM2901N Description

The LM2901N is a general-purpose comparator IC designed for a wide range of applications requiring reliable and precise voltage comparison. Manufactured by onsemi, this IC is housed in a through-hole package, specifically a 14-pin MDIP (Medium-Density Plastic Dual In-line Package), making it suitable for both prototyping and production environments. Despite being marked as obsolete, the LM2901N remains a robust choice for applications where its unique features and performance benefits are still relevant.

LM2901N Features

• Output Current: The LM2901N can provide a typical output current of 18mA at 5V, ensuring it can drive a variety of loads effectively.
• Quiescent Current: With a maximum quiescent current of 2.5mA, this IC is designed for low power consumption, making it ideal for battery-operated or energy-sensitive applications.
• Input Bias Current: The maximum input bias current is 0.25µA at 5V, which minimizes the impact on the input signal source.
• Input Offset Voltage: A maximum input offset voltage of 7mV at 5V ensures high accuracy in voltage comparison tasks.
• Supply Voltage Range: The LM2901N operates over a wide supply voltage range of 2V to 36V for single supply and ±1V to ±18V for dual supply, providing flexibility in power source options.
• Number of Elements: This IC contains four independent comparators, allowing for multiple comparison operations within a single package.
• Compliance and Packaging: The LM2901N is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and regulatory standards. It is packaged in a tube, which is suitable for bulk handling and storage.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the LM2901N is highly resistant to moisture, making it suitable for a variety of environmental conditions.

LM2901N Applications

The LM2901N is well-suited for applications that require precise voltage level detection and comparison. Some specific use cases include:

• Signal Processing: Ideal for applications where multiple signal levels need to be compared and processed, such as in analog-to-digital converters or signal conditioning circuits.
• Power Management: Can be used in power supply monitoring circuits to detect and respond to voltage changes, ensuring reliable operation.
• Automotive Electronics: Due to its wide operating voltage range and robustness, the LM2901N can be used in automotive applications where voltage levels can vary significantly.
• Industrial Control: Suitable for industrial control systems where precise voltage comparison is necessary for process control and monitoring.

Conclusion of LM2901N

The LM2901N, despite being marked as obsolete, continues to offer significant advantages in applications requiring reliable and precise voltage comparison. Its low quiescent current, low input bias current, and wide supply voltage range make it a versatile choice for a variety of electronic systems. The inclusion of four independent comparators in a single package provides a compact and efficient solution for multiple comparison tasks. While newer models may offer additional features, the LM2901N remains a reliable and cost-effective option for many existing designs and applications.