LM385DR-1-2

Overview

The LM385DR-1-2 is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed nominal output voltage of 1.235 V with an initial accuracy of ±2%. The device operates within a temperature range of 0°C to +70°C and supports a maximum shunt current of 20 mA. It features a typical temperature coefficient of 20 ppm/°C and utilizes an 8-SOIC surface-mount package.

Feature Summary

• Provides a stable 1.235 V reference voltage for precision analog circuits
• Operates with low quiescent current suitable for battery-powered applications
• Designed for use in data acquisition and measurement systems

Applications

• Portable instrumentation
• Battery-powered equipment
• Data acquisition systems

Procurement Notes

Verify the specific suffix DR-1-2 against the official Texas Instruments datasheet to confirm the SOIC-8 package and fixed 1.235 V output specification. Ensure the component meets the required operating temperature range and accuracy tolerances for the intended design environment before procurement.

Selection Notes

Select this component when a low-cost, fixed 1.235 V reference is required in a surface-mount format. Consider the ±2% initial accuracy and commercial temperature range limitations compared to higher precision or industrial grade alternatives within the LM385 family.

Part Context

This part belongs to the LM385 series of micropower voltage references from Texas Instruments. The series includes both adjustable and fixed voltage variants available in various packages such as TO-92, SOT-23, and SOIC. The LM385DR-1-2 specifically denotes the fixed 1.235 V version in an 8-pin SOIC package.

Replacement Considerations

LM385DR-1-2/NOPB