LM385BDG4-1-2

Overview

The LM385BDG4-1-2 is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a nominal output voltage of 1.235 V with an initial accuracy of ±1%. The device operates within a temperature range of 0°C to +70°C and features a maximum shunt current of 20 mA. It utilizes an 8-SOIC surface-mount package and exhibits a temperature coefficient of 20 ppm/°C.

Feature Summary

• Provides stable 1.235 V reference via shunt topology
• Maintains high precision with ±1% initial accuracy
• Operates efficiently at low quiescent currents

Applications

• Precision analog-to-digital converter references
• Battery-powered instrumentation circuits
• Data acquisition systems requiring stable bias voltages

Procurement Notes

Verify the specific suffix 'DG4' against the manufacturer's latest documentation to confirm pinout compatibility and RoHS status, as legacy designator changes may affect mechanical fit or environmental compliance without altering electrical function.

Selection Notes

Select this component when a fixed 1.235 V reference with tight tolerance is required in a compact surface-mount form factor. Ensure the application current does not exceed the 20 mA limit and that the operating environment remains within the commercial temperature range.

Part Context

This part belongs to the LM385 family of micropower voltage references. It serves as a cost-effective solution for applications needing a reliable bandgap reference source. The 'G4' suffix typically indicates a lead-free and RoHS-compliant variant of the original LM385BDR design.

Replacement Considerations

LM385BDRG4-1-2 is a confirmed direct substitute offering identical electrical specifications and pin configuration.