Texas Instruments

LM385BDRG4-1-2

LM385BDRG4-1-2 Description

The LM385BDRG4-1-2 is a fixed output shunt voltage reference IC designed by Texas Instruments. This device is part of the Power Management (PMIC) category and is housed in an 8-SOIC package. It offers a stable and precise reference voltage of 1.235V with a tolerance of ±1%. The LM385BDRG4-1-2 is designed for surface mount applications and features a typical temperature coefficient of 20ppm/°C, ensuring minimal drift over a wide operating temperature range of 0°C to 70°C. Despite its obsolete status, the LM385BDRG4-1-2 remains a reliable choice for applications requiring a low-noise reference voltage, with a noise level of 60µVrms from 10Hz to 10kHz. The device is REACH unaffected and RoHS3 compliant, making it suitable for environmentally conscious designs. It also has a moisture sensitivity level (MSL) of 1, indicating unlimited exposure to moisture without degradation.

LM385BDRG4-1-2 Features

• Fixed Output Voltage: Provides a stable 1.235V reference voltage with a tight tolerance of ±1%.
• Low Noise: Ensures high precision with a noise level of 60µVrms over the frequency range of 10Hz to 10kHz.
• Temperature Stability: Features a typical temperature coefficient of 20ppm/°C, ensuring minimal drift across the operating temperature range of 0°C to 70°C.
• Low Quiescent Current: The cathode current is only 15µA, making it suitable for low-power applications.
• Surface Mount Package: The 8-SOIC package is ideal for compact and surface mount designs.
• Compliance: REACH unaffected and RoHS3 compliant, suitable for environmentally conscious applications.
• Moisture Sensitivity: MSL level 1 (unlimited), ensuring robustness in various environmental conditions.

LM385BDRG4-1-2 Applications

The LM385BDRG4-1-2 is ideal for a variety of applications requiring a precise and stable voltage reference. Its low noise and temperature stability make it suitable for precision analog circuits, such as:

• Analog-to-Digital Converters (ADCs): Ensures accurate conversion by providing a stable reference voltage.
• Digital-to-Analog Converters (DACs): Maintains precision in output voltage levels.
• Power Supplies: Used as a reference in voltage regulators to ensure stable output voltage.
• Instrumentation: Provides a stable reference for precision measurements in various instruments.
• Battery Management Systems: Ensures accurate voltage monitoring and control.

Conclusion of LM385BDRG4-1-2

The LM385BDRG4-1-2 is a robust and precise shunt voltage reference IC from Texas Instruments, offering a stable 1.235V output with minimal noise and drift. Its low quiescent current and surface mount package make it suitable for compact and low-power applications. Despite being marked as obsolete, the LM385BDRG4-1-2 remains a reliable choice for precision analog circuits, ADCs, DACs, power supplies, and instrumentation. Its compliance with REACH and RoHS3 standards ensures it meets environmental regulations, while its MSL level 1 rating guarantees durability in various conditions. For applications requiring a precise and stable voltage reference, the LM385BDRG4-1-2 is an excellent option.