LM385PWRE4-1-2

Overview

The LM385PWRE4-1-2 is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed 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 features a temperature coefficient of 20 ppm/°C. It supports a maximum shunt current of 20 mA and is housed in an 8-TSSOP surface-mount package.

Feature Summary

• Provides a stable 1.235 V reference voltage suitable for precision applications
• Operates with low quiescent current for energy-efficient designs
• Features a compact 8-pin TSSOP package for space-constrained PCB layouts

Applications

• Portable battery-powered instrumentation
• Data acquisition systems
• Microcontroller analog-to-digital converter references

Procurement Notes

Verify the component status as this specific part number may be obsolete or subject to change. Confirm that the E4 suffix denotes lead-free composition compatible with RoHS standards. Ensure the 8-TSSOP footprint matches the design schematic before procurement.

Selection Notes

Select this component when a fixed 1.235 V reference is required in a surface-mount format. Consider the ±2% initial accuracy and 20 ppm/°C temperature coefficient against application tolerance requirements. Verify that the 20 mA maximum shunt current meets the circuit load demands.

Part Context

This part belongs to the LM385 family of micropower voltage references from Texas Instruments. It serves as a lead-free variant (indicated by the E4 suffix) of the standard LM385 series, maintaining identical electrical characteristics while adhering to environmental compliance standards for modern electronics manufacturing.

Replacement Considerations

LM385PWR-1-2

FAQ

What does the E4 suffix indicate?

The E4 suffix indicates that the component is lead-free and compliant with RoHS standards.

Is this an adjustable voltage reference?

No, the -1-2 suffix designates it as a fixed 1.235 V output reference.