Texas Instruments

LM2903DRE4  

Linear Comparators

LM2903DRE4 Description

The LM2903DRE4 is a general-purpose comparator IC featuring two differential input channels, designed for a wide of range electronic applications. Manufactured by Texas Instruments, this IC is part of the Linear IC Chips category and is housed in an 8-pin SOIC package, making it suitable for surface-mount applications. Despite being marked as obsolete, the LM2903DRE4 remains a reliable choice for designers seeking a robust and versatile comparator solution.

LM2903DRE4 Features

• Output Current: The LM2903DRE4 can deliver a typical output current of 20mA, ensuring strong drive capabilities for various load conditions.
• Low Quiescent Current: With a maximum quiescent current of 2.5mA, this IC is designed to minimize power consumption, making it ideal for battery-powered and energy-efficient systems.
• 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 design.
• Low Input Offset Voltage: The maximum input offset voltage is 7mV at 30V, ensuring high accuracy and reliability in signal comparison.
• Low Input Bias Current: The maximum input bias current is 0.25µA at 5V, which helps in maintaining high input impedance and reducing loading effects on the signal source.
• Moisture Sensitivity Level: Rated at MSL 1 (Unlimited), the LM2903DRE4 is suitable for applications in various environmental conditions without the need for special handling.
• Compliance: The IC is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards.
• Packaging: Available in tape and reel (TR) packaging, facilitating efficient handling and assembly in automated manufacturing processes.

LM2903DRE4 Applications

The LM2903DRE4 is well-suited for a variety of applications due to its robust performance and versatile design. Key applications include:

• Signal Processing: Ideal for comparing analog signals in various signal processing circuits, such as level detectors and window comparators.
• Power Management: Used in power supply monitoring and protection circuits to ensure reliable operation within specified voltage ranges.
• Automotive Electronics: Suitable for automotive applications where high reliability and wide operating voltage ranges are critical.
• Industrial Control: Employed in industrial control systems for precise signal comparison and control tasks.
• Consumer Electronics: Used in consumer electronics for tasks such as battery level indication and voltage monitoring.

Conclusion of LM2903DRE4

The LM2903DRE4 from Texas Instruments is a versatile and reliable general-purpose comparator IC, offering a wide operating voltage range, low quiescent current, and high accuracy. Despite its obsolete status, it remains a valuable component for designers seeking a robust and efficient comparator solution. Its low input offset voltage and bias current make it suitable for precision applications, while its compliance with environmental standards ensures its suitability for modern electronics. The LM2903DRE4 is ideal for applications in signal processing, power management, automotive electronics, industrial control, and consumer electronics, making it a go-to choice for a wide range of electronic designs.

LM2903DRE4 Documents

Download datasheets and manufacturer documentation for LM2903DRE4

PCN Assembly/Origin :

Assembly Changes 29/Mar/2021      

Datasheets :

LM193,293,393(A), 2903(V) Datasheet      

Reference Design Library :

TIDA-01519: Fire & Carbon Monoxide Alarm Detector Reference Design with Low BOM Cost      

PCN Obsolescence/ EOL :

EOL 22/Jun/2023