Texas Instruments

LM385MX-2.5  

Voltage References

LM385MX-2.5 Description

The LM385MX-2.5 is a precision shunt voltage reference IC designed by Texas Instruments, offering a fixed output voltage of 2.5V with a tolerance of ±3%. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in an 8-pin SOIC package, suitable for surface mount applications. The LM385MX-2.5 is known for its low noise performance, with a noise level of 120µVrms over the frequency range of 10Hz to 10kHz. It features a low temperature coefficient of 150ppm/°C, ensuring stable performance across its operating temperature range of 0°C to 70°C. The IC can handle a maximum cathode current of 20µA and an output current of up to 20mA, making it suitable for a variety of low-power applications. Although the LM385MX-2.5 is now obsolete, it remains a reliable choice for applications requiring a stable and precise voltage reference.

LM385MX-2.5 Features

• Fixed Output Voltage: The LM385MX-2.5 provides a stable 2.5V output voltage, ideal for applications requiring a precise reference voltage.
• Low Noise: With a noise level of 120µVrms from 10Hz to 10kHz, this IC ensures minimal voltage fluctuations, enhancing the accuracy of analog circuits.
• Low Temperature Coefficient: The 150ppm/°C temperature coefficient ensures consistent performance across the operating temperature range, making it suitable for environments with varying temperatures.
• High Current Capability: The ability to handle up to 20mA of output current allows the LM385MX-2.5 to drive multiple devices or circuits, providing a versatile solution for various applications.
• Surface Mount Packaging: The 8-pin SOIC package is designed for surface mount technology, facilitating easy integration into compact and high-density PCB designs.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the LM385MX-2.5 is suitable for manufacturing processes with extended exposure to ambient conditions.
• Compliance: The LM385MX-2.5 is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring compliance with international regulations.

LM385MX-2.5 Applications

The LM385MX-2.5 is well-suited for applications requiring a stable and precise voltage reference. 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): Ensuring precise output levels in DACs for reliable analog signal generation.
• Power Supply Circuits: Serving as a reference for voltage regulators and power management circuits to maintain stable output voltages.
• Instrumentation: Used in precision measurement equipment where accurate voltage references are critical for reliable readings.
• Medical Devices: Ensuring precise voltage levels in medical equipment for accurate diagnostics and treatment.

Conclusion of LM385MX-2.5

The LM385MX-2.5 is a robust and reliable shunt voltage reference IC that offers a precise 2.5V output with minimal noise and temperature drift. Its ability to handle higher currents and its compact surface mount package make it a versatile solution for a wide range of applications. Despite being obsolete, the LM385MX-2.5 remains a valuable component for engineers and designers seeking a stable and accurate voltage reference in their power management and analog circuit designs.

LM385MX-2.5 Documents

Download datasheets and manufacturer documentation for LM385MX-2.5

Datasheets :

LM185,285,385-2.5      

HTML Datasheet :

LM185,285,385-2.5