LM385BD-1-2

Overview

The LM385BD-1-2 is a micropower shunt voltage reference from Texas Instruments, providing a nominal output of 1.235 V with an initial accuracy of ±1%. It operates within a current range of 10 µA to 20 mA and features a low temperature coefficient of 20 ppm/°C. The device is housed in an 8-SOIC surface-mount package and supports operation between 0°C and +70°C.

Feature Summary

• Provides stable 1.235 V reference via two-terminal bandgap architecture
• Maintains high precision with ±1% initial tolerance
• Ensures thermal stability through low temperature coefficient design

Applications

• Portable instrumentation requiring extended battery life
• Analog circuitry needing precise voltage standards
• Data acquisition systems for ADC/DAC references

Procurement Notes

Verify the specific suffix 'BD' against official datasheets to confirm the 8-SOIC package and ±1% grade. Confirm RoHS compliance status as manufacturing processes evolve. Check for end-of-life notices or obsolescence warnings before finalizing procurement plans.

Selection Notes

Select this component when a compact surface-mount solution is required for low-power applications. Ensure the operating environment stays within the commercial temperature range. Verify that the load current requirements fall within the specified 10 µA to 20 mA operational window for optimal regulation.

Part Context

This part belongs to the LM385 series of micropower voltage references. It utilizes a bandgap reference principle to achieve stable output. The series is designed for applications where low dynamic impedance and low noise are critical for maintaining signal integrity in precision analog circuits.

Replacement Considerations

LM385BDRG4-1-2: Pin-compatible alternative with identical electrical specifications.