onsemi

LM385Z-1.2RA

LM385Z-1.2RA Description

The LM385Z-1.2RA is a fixed-output, shunt voltage reference IC designed by onsemi. This device offers a highly stable and precise reference voltage of 1.235V, making it suitable for a wide range of precision analog applications. The LM385Z-1.2RA features a typical temperature coefficient of 80ppm/°C, ensuring minimal drift over the operating temperature range of 0°C to 70°C. It also boasts a low noise level of 60µVrms over the frequency range of 10Hz to 10kHz, which is crucial for maintaining high accuracy in sensitive circuits.

LM385Z-1.2RA Features

• Fixed Output Voltage: The LM385Z-1.2RA provides a stable output voltage of 1.235V, ensuring consistent performance in various applications.
• Low Temperature Coefficient: With a typical temperature coefficient of 80ppm/°C, this voltage reference maintains high accuracy across its operating temperature range.
• Low Noise: The device exhibits low noise levels of 60µVrms from 10Hz to 10kHz, which is essential for precision applications where noise can significantly impact performance.
• High Output Current Capability: The LM385Z-1.2RA can handle up to 20 mA of output current, making it suitable for applications requiring higher current loads.
• Low Cathode Current: The device operates with a low cathode current of 20 µA, which helps in minimizing power consumption.
• Through Hole Mounting: The through-hole mounting type ensures robust mechanical stability and ease of integration into various circuit designs.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the LM385Z-1.2RA is suitable for a wide range of environmental conditions without requiring special handling precautions.
• Compliance: The device is REACH unaffected and classified under ECCN EAR99, ensuring compliance with relevant regulations.

LM385Z-1.2RA Applications

The LM385Z-1.2RA is ideal for applications requiring a precise and stable voltage reference. Some specific use cases include:

• Precision Analog Circuits: Ideal for use in analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) where accuracy and stability are critical.
• Power Supply Design: Suitable for voltage regulation and stabilization in power supply circuits, ensuring consistent output voltage.
• Instrumentation and Measurement: The low noise and high stability make it suitable for precision measurement equipment, such as voltmeters and ammeters.
• Medical Devices: The stability and low temperature coefficient are beneficial in medical devices where high accuracy is required.
• Industrial Control Systems: The robustness and reliability of the LM385Z-1.2RA make it suitable for industrial control systems that require precise voltage references.

Conclusion of LM385Z-1.2RA

The LM385Z-1.2RA is a highly reliable and precise shunt voltage reference IC from onsemi. Its fixed output voltage of 1.235V, low temperature coefficient, and low noise levels make it an excellent choice for precision analog applications. The device's ability to handle higher output currents and its low cathode current further enhance its versatility and efficiency. Despite being marked as obsolete, the LM385Z-1.2RA remains a valuable component for applications requiring a stable and accurate voltage reference. Its through-hole mounting and compliance with industry regulations ensure ease of integration and reliability in various electronic designs.