Texas Instruments

LM4132DMF-4.1

LM4132DMF-4.1 Description

The LM4132DMF-4.1 is a precision voltage reference IC designed by Texas Instruments, offering a fixed output voltage of 4.096V with a tolerance of ±0.4%. This device is part of the LM4132 series, known for its high accuracy and stability in voltage reference applications. The LM4132DMF-4.1 is housed in a compact SOT23-5 package, making it suitable for surface mount applications where space is a critical consideration. With a supply current of only 100µA, this voltage reference is highly efficient, making it ideal for low-power designs. The device operates over an input voltage range of 4.496V to 5.5V, ensuring reliable performance in various power supply conditions. The LM4132DMF-4.1 also features a temperature coefficient of 20ppm/°C, which ensures minimal drift over a wide temperature range, thereby maintaining high accuracy in diverse operating environments.

LM4132DMF-4.1 Features

• Fixed Output Voltage: The LM4132DMF-4.1 provides a stable output voltage of 4.096V, ensuring precise reference levels for analog circuits.
• High Accuracy: With a tolerance of ±0.4%, this device offers high accuracy, making it suitable for applications requiring tight voltage regulation.
• Low Supply Current: Consuming only 100µA, the LM4132DMF-4.1 is highly efficient, making it ideal for battery-powered and low-power applications.
• Wide Input Voltage Range: The device operates reliably over an input voltage range of 4.496V to 5.5V, providing flexibility in power supply design.
• Low Temperature Coefficient: The 20ppm/°C temperature coefficient ensures minimal drift over temperature, maintaining accuracy in varying conditions.
• Surface Mount Package: The SOT23-5 package is compact and suitable for surface mount applications, saving space on the PCB.
• Series Reference Type: As a series reference, the LM4132DMF-4.1 provides a stable output voltage that is independent of input voltage variations.

LM4132DMF-4.1 Applications

The LM4132DMF-4.1 is well-suited for a variety of applications where precision voltage references are required. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Providing a stable reference voltage for ADCs to ensure accurate digital conversions.
• Digital-to-Analog Converters (DACs): Offering a precise reference for DACs to maintain high accuracy in analog signal generation.
• Power Management Circuits: Serving as a reference voltage in power management applications to ensure stable operation.
• Precision Measurement Equipment: Used in instruments requiring high accuracy and stability, such as voltmeters and calibrators.
• Battery Management Systems: Ensuring accurate voltage monitoring and control in battery management applications.

Conclusion of LM4132DMF-4.1

The LM4132DMF-4.1 is a high-performance voltage reference IC that stands out due to its precision, efficiency, and stability. Its fixed output voltage of 4.096V with a ±0.4% tolerance, combined with a low supply current and wide input voltage range, makes it an excellent choice for applications requiring precise voltage references. The compact SOT23-5 package and low temperature coefficient further enhance its suitability for space-constrained and temperature-sensitive designs. Despite being marked as obsolete, the LM4132DMF-4.1 remains a reliable option for engineers seeking a high-accuracy voltage reference in their designs.