Texas Instruments

LM4128AMF-3.0

LM4128AMF-3.0 Description

The LM4128AMF-3.0 is a precision voltage reference IC designed by Texas Instruments, offering a fixed output voltage of 3.0V with an exceptionally tight tolerance of ±0.1%. This device is part of the LM4128 series, known for its high accuracy and reliability in various electronic applications. The LM4128AMF-3.0 is housed in a compact SOT23-5 package, making it suitable for surface-mount applications where space is a critical consideration.

LM4128AMF-3.0 Features

• Fixed Output Voltage: The LM4128AMF-3.0 provides a stable 3.0V output, ensuring consistent performance in voltage reference applications.
• High Accuracy: With a tolerance of ±0.1%, this IC offers high precision, making it ideal for applications requiring accurate voltage references.
• Low Quiescent Current: The device operates with a low supply current of 100µA, which is beneficial for low-power and battery-operated systems.
• Wide Input Voltage Range: The LM4128AMF-3.0 can operate with an input voltage range of 3.4V to 5.5V, providing flexibility in power supply requirements.
• Low Temperature Coefficient: The temperature coefficient of 75ppm/°C ensures minimal drift in output voltage over a wide temperature range, enhancing the stability of the reference voltage.
• Surface-Mount Packaging: The SOT23-5 package allows for easy integration into compact designs, supporting surface-mount assembly processes.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the LM4128AMF-3.0 is suitable for use in environments with varying humidity levels without additional moisture protection.

LM4128AMF-3.0 Applications

The LM4128AMF-3.0 is well-suited for a variety of applications where a precise and stable voltage reference is required. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Provides a stable reference voltage to ensure accurate digital conversions.
• Digital-to-Analog Converters (DACs): Ensures precise analog output by offering a reliable reference voltage.
• Power Management Systems: Used in voltage regulators and power supplies to maintain stable output voltages.
• Precision Instrumentation: Ideal for laboratory and industrial equipment that require high-accuracy voltage references.
• Battery-Powered Devices: The low quiescent current and wide input voltage range make it suitable for portable and low-power applications.

Conclusion of LM4128AMF-3.0

The LM4128AMF-3.0 from Texas Instruments is a high-performance voltage reference IC that stands out due to its exceptional accuracy, low quiescent current, and wide input voltage range. Its compact SOT23-5 package and low temperature coefficient make it a versatile and reliable choice for a wide array of applications. Despite being marked as obsolete, the LM4128AMF-3.0 remains a valuable component for designers seeking a precision voltage reference in new and existing projects.