Texas Instruments

LM385PSR-1-2

LM385PSR-1-2 Description

The LM385PSR-1-2 is a precision shunt voltage reference IC designed by Texas Instruments. This device is known for its high accuracy and stability, making it suitable for a wide range of applications in the electronics industry. The LM385PSR-1-2 features a fixed output voltage of 1.235V with a tolerance of ±2%, ensuring precise voltage regulation. It operates within a temperature range of 0°C to 70°C, providing reliable performance in various environmental conditions.

LM385PSR-1-2 Features

• Output Type: Fixed, ensuring consistent voltage output.
• Current - Output: 20 mA, capable of driving multiple devices.
• Temperature Coefficient: 20ppm/°C typical, offering high stability over a wide temperature range.
• Noise - 10Hz to 10kHz: 60µVrms, ensuring low noise levels for sensitive applications.
• Mounting Type: Surface Mount, suitable for compact and high-density designs.
• Package: Tape & Reel (TR), facilitating automated assembly processes.
• Operating Temperature: 0°C to 70°C (TA), suitable for a variety of industrial and consumer applications.
• Tolerance: ±2%, providing high accuracy for precise voltage reference needs.
• Current - Cathode: 15 µA, ensuring low power consumption.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), suitable for storage and handling in various environments.
• RoHS Status: ROHS3 Compliant, ensuring environmental compliance.
• REACH Status: REACH Unaffected, meeting regulatory requirements for chemical safety.

LM385PSR-1-2 Applications

The LM385PSR-1-2 is ideal for applications requiring high precision and stability in voltage reference. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Providing a stable reference voltage to ensure accurate conversions.
• Digital-to-Analog Converters (DACs): Enhancing the precision of output signals.
• Power Supplies: Stabilizing output voltage for sensitive electronic circuits.
• Instrumentation: Ensuring accurate measurements in laboratory and industrial equipment.
• Consumer Electronics: Improving the performance of devices that require precise voltage regulation.

Conclusion of LM385PSR-1-2

The LM385PSR-1-2 from Texas Instruments is a robust and reliable voltage reference IC designed for precision applications. Its fixed output voltage, low temperature coefficient, and low noise levels make it an excellent choice for applications requiring high accuracy and stability. Despite being marked as obsolete, the LM385PSR-1-2 continues to offer unique benefits over similar models, including its ±2% tolerance and 20ppm/°C typical temperature coefficient. This device is particularly well-suited for applications in ADCs, DACs, power supplies, instrumentation, and consumer electronics, where precise voltage regulation is critical.