Texas Instruments

LM4050AEM3-2.0

LM4050AEM3-2.0 Description

The LM4050AEM3-2.0 is a fixed shunt voltage reference IC designed by Texas Instruments. This device offers a highly accurate and stable reference voltage of 2.048V, with a tolerance of ±0.1%. It is designed for surface mount applications and comes in a compact SOT23-3 package, making it suitable for a wide range of electronic designs. Despite its small form factor, the LM4050AEM3-2.0 provides robust performance with a temperature coefficient of 50ppm/°C, ensuring minimal drift over a wide temperature range. The device is capable of sourcing up to 15 mA of output current and has a low cathode current of 65 µA, which helps in maintaining high efficiency and low power consumption. The noise level, measured from 10Hz to 10kHz, is a low 34µVrms, contributing to its high precision and reliability. The LM4050AEM3-2.0 is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001. It is packaged in a tape and reel format, facilitating automated assembly processes. Although the product status is marked as obsolete, it remains a reliable choice for existing designs and legacy systems.

LM4050AEM3-2.0 Features

• High Accuracy: The LM4050AEM3-2.0 provides a highly accurate reference voltage with a tolerance of ±0.1%, ensuring precise measurements and stable performance in various applications.
• Low Temperature Coefficient: With a temperature coefficient of 50ppm/°C, the device maintains its accuracy across a wide temperature range, making it suitable for demanding environments.
• Low Noise: The low noise level of 34µVrms from 10Hz to 10kHz ensures high precision and reliability, making it ideal for sensitive analog circuits.
• High Output Current: The ability to source up to 15 mA of output current allows the LM4050AEM3-2.0 to drive multiple loads or larger capacitive loads without significant voltage drop.
• Low Power Consumption: The low cathode current of 65 µA helps in maintaining high efficiency and low power consumption, making it suitable for battery-powered and energy-efficient designs.
• Compact Packaging: The SOT23-3 package format ensures a small footprint, making it ideal for space-constrained designs and high-density PCB layouts.
• Surface Mount Compatibility: The surface mount mounting type facilitates automated assembly processes, reducing production costs and improving manufacturing efficiency.
• Moisture Sensitivity Level 1: The MSL 1 (Unlimited) rating ensures the device is not sensitive to moisture, enhancing its reliability in various environmental conditions.

LM4050AEM3-2.0 Applications

The LM4050AEM3-2.0 is ideal for applications requiring a highly accurate and stable voltage reference. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Provides a precise reference voltage for ADCs, ensuring accurate digital representations of analog signals.
• Digital-to-Analog Converters (DACs): Ensures accurate voltage levels for DACs, maintaining the integrity of analog outputs.
• Precision Measurement Equipment: Used in instruments requiring high accuracy and stability, such as voltmeters and oscilloscopes.
• Power Supply Calibration: Serves as a reference for calibrating power supply outputs, ensuring precise voltage regulation.
• Battery Management Systems: Provides a stable reference for monitoring and managing battery voltages in portable devices.
• Medical Devices: Ensures accurate measurements in medical equipment, such as glucose meters and ECG machines.

Conclusion of LM4050AEM3-2.0

The LM4050AEM3-2.0 from Texas Instruments is a highly accurate and stable shunt voltage reference IC, offering a fixed output voltage of 2.048V with a tolerance of ±0.1%. Its low temperature coefficient, low noise, and high output current make it a reliable choice for precision applications. The compact SOT23-3 package and surface mount compatibility ensure it fits well in space-constrained designs and facilitates automated assembly. Although marked as obsolete, the LM4050AEM3-2.0 remains a viable option for existing designs and legacy systems, providing robust performance and reliability.