LM385BD-1.2G

Overview

The LM385BD-1.2G is a precision shunt voltage reference manufactured by onsemi, designed for applications requiring stable voltage regulation within micro-power circuits. This component utilizes a bandgap topology to deliver a nominal output voltage of 1.235V with an initial accuracy of ±2.0%. It operates effectively across a wide current range from 10µA to 20mA, ensuring low dynamic impedance and minimal noise. The device is housed in an 8-pin SOIC surface-mount package, suitable for automated assembly processes. It supports parallel topology operation and maintains performance within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Provides precise fixed voltage reference using bandgap technology
• Operates efficiently over a wide current range from 10µA to 20mA
• Features low dynamic impedance and low noise characteristics
• Designed for extended battery life in portable applications

Applications

• Portable instrumentation systems
• Power management circuits
• Analog signal conditioning
• Battery-powered devices

Procurement Notes

Verify the specific suffix 'BD' against official datasheets to confirm pinout compatibility and thermal characteristics for the SOIC-8 package. Ensure that the ±2.0% tolerance meets the design requirements for the target application. Cross-reference the manufacturer's latest documentation to confirm RoHS compliance status and any recent product change notices affecting this part number.

Selection Notes

Select this component when a compact surface-mount solution is required for low-power voltage referencing. The 8-pin SOIC package offers higher density compared to through-hole alternatives. Consider the ±2.0% initial accuracy and the 0°C to +70°C operating range to ensure suitability for commercial-grade environments where space constraints are critical.

Part Context

This part belongs to the LM385 series of two-terminal shunt voltage references. The series is characterized by its ability to function as a stable reference or regulator in various analog circuits. The LM385BD variant specifically adapts the standard reference functionality into a surface-mount format, facilitating integration into modern printed circuit board designs while maintaining the core electrical performance of the family.

Replacement Considerations

LM385D-1.2G