Texas Instruments

LM4041CEM3X-1.2

LM4041CEM3X-1.2 Description

The LM4041CEM3X-1.2 is a precision shunt voltage reference IC designed by Texas Instruments, offering a fixed output voltage of 1.225V with a tolerance of ±0.5%. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a compact SOT23-3 package, making it suitable for surface-mount applications. Despite its small form factor, the LM4041CEM3X-1.2 provides robust performance with a temperature coefficient of 100ppm/°C and low noise levels of 20µVrms over the 10Hz to 10kHz frequency range. It is capable of sourcing up to 12 mA of output current and has a cathode current of 68 µA. The device is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001. Although it is now considered obsolete, the LM4041CEM3X-1.2 remains a reliable choice for applications requiring precise voltage references.

LM4041CEM3X-1.2 Features

• Fixed Output Voltage: The LM4041CEM3X-1.2 provides a stable output voltage of 1.225V, ensuring consistent performance in voltage reference applications.
• High Precision: With a tolerance of ±0.5%, this IC offers high accuracy, making it ideal for precision measurement and control systems.
• Low Temperature Coefficient: The 100ppm/°C temperature coefficient ensures minimal drift over a wide temperature range, enhancing the stability of the reference voltage.
• Low Noise: The device exhibits low noise levels of 20µVrms from 10Hz to 10kHz, which is crucial for applications requiring high signal integrity.
• High Output Current Capability: The ability to source up to 12 mA of current allows the LM4041CEM3X-1.2 to drive multiple loads or larger circuits efficiently.
• Compact Surface-Mount Package: The SOT23-3 package is suitable for space-constrained designs, facilitating integration into compact electronic systems.
• Moisture Sensitivity Level 1: The MSL 1 (Unlimited) rating ensures the device can be stored and used in various environmental conditions without moisture-related issues.

LM4041CEM3X-1.2 Applications

The LM4041CEM3X-1.2 is well-suited for a variety of applications that demand precise voltage references. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Providing a stable reference voltage to ensure accurate conversion of analog signals to digital values.
• Digital-to-Analog Converters (DACs): Ensuring precise output levels by offering a reliable reference voltage.
• Power Supplies: Serving as a reference for voltage regulation in power supply designs, enhancing the stability and accuracy of the output voltage.
• Instrumentation and Measurement Equipment: Used in precision measurement devices to maintain accuracy and reliability.
• Medical Devices: Ensuring precise voltage levels in medical equipment where accuracy is critical.

Conclusion of LM4041CEM3X-1.2

The LM4041CEM3X-1.2 from Texas Instruments is a high-performance shunt voltage reference IC that offers a combination of precision, low noise, and high current capability in a compact package. Despite its obsolescence, it remains a reliable choice for applications requiring a stable and accurate voltage reference. Its key features, such as low temperature coefficient and high output current, make it a versatile component for various electronic systems. For designers seeking precision and reliability in their voltage reference needs, the LM4041CEM3X-1.2 is a robust and proven solution.