Texas Instruments

LM2903DG4  

Linear Comparators

LM2903DG4 Description

The LM2903DG4 is a general-purpose linear comparator IC designed by Texas Instruments. This device features two differential inputs and is packaged in an 8-pin SOIC surface-mount package. It is designed to operate with a wide supply voltage range, from 2V to 36V for single supply and ±1V to ±18V for dual supply configurations. The LM2903DG4 offers a maximum input offset voltage of 7mV at 30V, ensuring high accuracy in voltage comparisons. With a maximum quiescent current of 2.5mA and an input bias current of 0.25µA at 5V, this comparator is optimized for low power consumption and high performance. The LM2903DG4 is REACH unaffected and ROHS3 compliant, making it suitable for environmentally conscious applications. Despite its obsolete product status, the LM2903DG4 remains a reliable choice for various electronic designs.

LM2903DG4 Features

• Wide Supply Voltage Range: Operates from 2V to 36V for single supply and ±1V to ±18V for dual supply, providing flexibility in power supply requirements.
• Low Input Offset Voltage: Maximum of 7mV at 30V ensures precise voltage comparisons, ideal for applications requiring high accuracy.
• Low Quiescent Current: Maximum of 2.5mA reduces power consumption, making it suitable for battery-operated and low-power applications.
• Low Input Bias Current: Maximum of 0.25µA at 5V minimizes the impact on input signals, enhancing overall system performance.
• Surface-Mount Package: 8-pin SOIC package is ideal for compact and space-constrained designs, facilitating easy integration into modern electronic systems.
• Environmental Compliance: REACH unaffected and ROHS3 compliant, ensuring it meets stringent environmental standards.
• Moisture Sensitivity Level: MSL 1 (Unlimited) allows for flexible storage and handling conditions without compromising the device's reliability.

LM2903DG4 Applications

The LM2903DG4 is well-suited for a variety of applications where precise voltage comparison is required. Its wide supply voltage range and low power consumption make it ideal for:

• Battery Management Systems: Ideal for monitoring battery voltage levels, ensuring safe and efficient operation.
• Signal Processing: Used in analog signal processing circuits to compare and condition signals.
• Power Supply Monitoring: Monitors power supply voltages to ensure they remain within specified limits, protecting sensitive electronic components.
• Automotive Electronics: Suitable for automotive applications where compact size and low power consumption are critical.
• Industrial Control Systems: Provides reliable voltage comparison in industrial control systems, ensuring accurate and stable operation.

Conclusion of LM2903DG4

The LM2903DG4 is a versatile and reliable linear comparator that offers a wide range of features and benefits. Its wide supply voltage range, low input offset voltage, and low quiescent current make it an excellent choice for various applications, including battery management, signal processing, and power supply monitoring. Despite being marked as obsolete, the LM2903DG4 remains a robust and environmentally compliant solution for designers seeking a general-purpose comparator. Its compact surface-mount package and low power consumption further enhance its appeal for modern electronic designs.

LM2903DG4 Documents

Download datasheets and manufacturer documentation for LM2903DG4

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 :

LM293/393/2903 obs 03/Nov/2022      

PCN Design/Specification :

Design 25/Feb/2022