LM385BS8-1.2#PBF

Overview

The LM385BS8-1.2#PBF is a micropower voltage reference featuring a nominal reverse breakdown voltage of 1.235V with a guaranteed initial tolerance of 1%. It operates within a current range of 81µA to 20mA and maintains a maximum dynamic impedance of 1Ω. The device exhibits an average temperature coefficient of 20ppm/°C and wideband noise of 60µVRMS. It is housed in an 8-lead plastic SO package (S8) and supports an operating temperature range from 0°C to 70°C.

Feature Summary

• Provides precision performance with micropower operation suitable for low-power applications
• Features very low power consumption and excellent stability over time and temperature
• Designed as a two-terminal band gap reference diode for high accuracy

Applications

• Portable meter references
• Portable test instruments
• Battery operated systems
• Current loop instrumentation

Procurement Notes

Verify the specific suffix 'BS8' against official Analog Devices documentation to confirm the exact package type, temperature grade, and tolerance class. Ensure the ordering information matches the required specifications for your design constraints before finalizing procurement.

Selection Notes

Select this component when a stable 1.235V reference is needed with tight initial tolerance. Consider the S8 package dimensions and the 0°C to 70°C operating range. Evaluate if the 1% tolerance meets system requirements compared to other available options.

Part Context

This part belongs to the LM185/LM285/LM385 family of micropower shunt voltage references. These devices utilize advanced band gap design techniques to achieve superior performance over previous generations. The LM385 variant specifically targets commercial temperature ranges.

Replacement Considerations

Consult official documentation for direct substitutes. Related parts include LT1004-1.2 for tighter initial accuracy and LT1034 for lower temperature coefficients.