Texas Instruments

LM385BM-2.5

LM385BM-2.5 Description

The LM385BM-2.5 is a fixed output, precision shunt voltage reference IC designed by Texas Instruments. It offers a stable and reliable reference voltage of 2.5V with a tolerance of ±1.5%. This device is ideal for applications requiring high precision and low noise, making it suitable for a wide range of power management and analog circuit designs. The LM385BM-2.5 is housed in an 8-SOIC package, which is compact and suitable for surface mount applications. Despite being marked as obsolete, it remains a popular choice due to its robust performance and compatibility with existing designs.

LM385BM-2.5 Features

• Fixed Output Voltage: The LM385BM-2.5 provides a stable output voltage of 2.5V, ensuring consistent performance in various applications.
• Low Noise: With a noise level of 120µVrms over the 10Hz to 10kHz frequency range, this device ensures minimal interference in sensitive analog circuits.
• Low Temperature Coefficient: The temperature coefficient of 150ppm/°C ensures minimal drift in output voltage over a wide temperature range, enhancing stability.
• High Output Current Capability: The device can support up to 20 mA of output current, making it suitable for driving multiple loads.
• Low Cathode Current: The low cathode current of 20 µA reduces power consumption and enhances efficiency.
• Wide Operating Temperature Range: The LM385BM-2.5 operates reliably within a temperature range of 0°C to 70°C, making it suitable for various environmental conditions.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the device is highly resistant to moisture, ensuring long-term reliability.
• Compliance: The LM385BM-2.5 is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

LM385BM-2.5 Applications

The LM385BM-2.5 is well-suited for a variety of applications where precision voltage references are required. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Provides a stable reference voltage for accurate analog signal conversion.
• Digital-to-Analog Converters (DACs): Ensures precise output voltage levels for digital signal processing.
• Power Management Circuits: Used in voltage regulators and power supplies to maintain stable output voltages.
• Precision Measurement Equipment: Enhances the accuracy of instruments by providing a reliable reference voltage.
• Battery Management Systems: Ensures accurate voltage monitoring and control for battery charging and discharging circuits.

Conclusion of LM385BM-2.5

The LM385BM-2.5 from Texas Instruments is a precision shunt voltage reference IC that offers exceptional performance and reliability. Its fixed output voltage of 2.5V, low noise, and low temperature coefficient make it an ideal choice for applications requiring high precision and stability. Despite being marked as obsolete, its robust features and compatibility with existing designs ensure that it remains a valuable component in the electronics industry. The LM385BM-2.5 is particularly well-suited for applications in power management, precision measurement, and analog signal processing, where its performance benefits can significantly enhance system accuracy and efficiency.