Texas Instruments

LM385PW-1-2  

Voltage References

LM385PW-1-2 Description

The LM385PW-1-2 is a precision shunt voltage reference IC designed by Texas Instruments. This device offers a fixed output voltage of 1.235V with a tolerance of ±2%, ensuring high accuracy and reliability in various electronic applications. The LM385PW-1-2 features a low temperature coefficient of 20ppm/°C typical, which minimizes voltage drift over varying temperatures, maintaining stability within the operating temperature range of 0°C to 70°C. Its low noise level of 60µVrms from 10Hz to 10kHz ensures clean and stable reference voltage, crucial for sensitive analog circuits.

The LM385PW-1-2 is designed for surface mount applications, packaged in an 8TSSOP format, and is available in trays. It has a cathode current of 15 µA and can support an output current of up to 20 mA, making it suitable for a wide range of current requirements. The device is compliant with ROHS3 and REACH regulations, ensuring environmental safety and regulatory compliance. With a moisture sensitivity level (MSL) of 1 (unlimited), the LM385PW-1-2 is robust against moisture, enhancing its reliability in various environmental conditions.

LM385PW-1-2 Features

• Fixed Output Voltage: Provides a stable 1.235V output with ±2% tolerance, ensuring precise voltage references.
• Low Temperature Coefficient: A typical temperature coefficient of 20ppm/°C ensures minimal voltage drift over the operating temperature range of 0°C to 70°C.
• Low Noise: With a noise level of 60µVrms from 10Hz to 10kHz, it offers clean and stable reference voltage, ideal for sensitive analog circuits.
• Surface Mount Compatibility: Packaged in an 8TSSOP format, suitable for surface mount applications, enhancing integration into compact designs.
• Regulatory Compliance: ROHS3 and REACH compliant, ensuring environmental safety and regulatory adherence.
• Moisture Resistance: MSL 1 (unlimited) rating ensures robustness against moisture, enhancing reliability in diverse environments.
• Current Handling: Supports a cathode current of 15 µA and an output current of up to 20 mA, catering to a wide range of current requirements.

LM385PW-1-2 Applications

The LM385PW-1-2 is ideal for applications requiring precise and stable voltage references. Its low noise and temperature coefficient make it suitable for:

• Analog-to-Digital Converters (ADCs): Ensuring accurate voltage references for precise digital conversions.
• Digital-to-Analog Converters (DACs): Providing stable reference voltages for accurate analog signal generation.
• Precision Voltage Measurements: Used in instrumentation and measurement devices for reliable voltage referencing.
• Power Supply Circuits: Serving as a reference voltage in voltage regulators and power management circuits.
• Medical and Industrial Equipment: Where high accuracy and stability are critical for reliable operation.

Conclusion of LM385PW-1-2

The LM385PW-1-2 from Texas Instruments is a high-performance shunt voltage reference IC that stands out for its precision, stability, and reliability. Its low temperature coefficient and noise level ensure minimal voltage drift and clean reference voltage, making it ideal for sensitive analog circuits. The device's surface mount compatibility, regulatory compliance, and moisture resistance further enhance its versatility and robustness. With its wide range of current handling capabilities, the LM385PW-1-2 is well-suited for various applications, including ADCs, DACs, precision voltage measurements, and power supply circuits. For designers seeking a reliable and precise voltage reference, the LM385PW-1-2 is an excellent choice.

LM385PW-1-2 Documents

Download datasheets and manufacturer documentation for LM385PW-1-2

Datasheets :

LM385BDE4-1-2      

PCN Obsolescence/ EOL :

Mult Dev EOL 6/Sep/2023      

PCN Design/Specification :

Design 22/Feb/2022