Texas Instruments

LM2903DGKRG4

LM2903DGKRG4 Description

The LM2903DGKRG4 is a general-purpose comparator IC designed for a wide range of applications, manufactured by Texas Instruments. This IC is housed in an 8-VSSOP surface-mount package and is part of the LM2903 family. It features two differential comparators with open-collector outputs, making it suitable for various analog and digital interfacing tasks. Despite being marked as obsolete, the LM2903DGKRG4 remains a reliable choice for legacy systems and specific applications where its unique features are advantageous.

LM2903DGKRG4 Features

• Output Current (Typ): 20mA, ensuring robust performance in driving various loads.
• Product Status: Obsolete, but still available for existing designs and maintenance.
• REACH Status: REACH Unaffected, complying with stringent chemical regulations.
• Number of Elements: 2 comparators, providing dual functionality in a single package.
• RoHS Status: ROHS3 Compliant, meeting environmental standards for hazardous substances.
• Current - Quiescent (Max): 2.5mA, ensuring low power consumption in standby mode.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), making it suitable for various environmental conditions.
• ECCN: EAR99, indicating compliance with export regulations.
• Mounting Type: Surface Mount, ideal for compact and high-density PCB designs.
• Voltage - Input Offset (Max): 7mV @ 30V, ensuring high accuracy in voltage comparisons.
• Type: General Purpose, versatile for a wide range of applications.
• Voltage - Supply, Single/Dual (±): 2V ~ 36V, ±1V ~ 18V, providing flexibility in power supply options.
• HTSUS: 8542.39.0001, facilitating accurate customs classification.
• Package: Tape & Reel (TR), suitable for automated assembly processes.
• Current - Input Bias (Max): 0.25µA @ 5V, minimizing the impact on input signals.
• Base Product Number: LM2903, a well-established and recognized product line.

LM2903DGKRG4 Applications

The LM2903DGKRG4 is ideal for applications requiring reliable and precise voltage comparisons. Its low input offset voltage and high input impedance make it suitable for precision signal conditioning and control systems. Some specific use cases include:

• Analog-to-Digital Conversion: Used in ADC interfaces to provide accurate voltage level detection.
• Power Supply Monitoring: Ideal for monitoring and controlling power supply voltages in various electronic systems.
• Signal Processing: Effective in signal processing applications where precise voltage comparisons are necessary.
• Automotive Electronics: Suitable for automotive applications due to its robustness and compliance with environmental regulations.
• Industrial Control Systems: Used in industrial automation for precise control and monitoring of various parameters.

Conclusion of LM2903DGKRG4

The LM2903DGKRG4, despite its obsolete status, remains a valuable component for specific applications requiring its unique features. Its low quiescent current, low input bias current, and wide supply voltage range make it a versatile choice for a variety of electronic designs. The open-collector output allows for easy interfacing with digital logic circuits, enhancing its utility in mixed-signal applications. For designers working with legacy systems or requiring a reliable, general-purpose comparator, the LM2903DGKRG4 is a solid option that continues to meet industry standards and regulatory requirements.