LM4040D30QDBZTG4

Overview

The LM4040D30QDBZTG4 is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 3 V with an initial accuracy of 1%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 150 PPM/°C. It requires a minimum operating current of 65 µA and supports a maximum shunt current of 15 mA. The component is housed in a SOT-23-3 surface-mount package.

Feature Summary

• Provides stable precision voltage reference performance suitable for sensitive analog circuits
• Designed for low power consumption applications through micropower operation characteristics
• Capable of maintaining specified electrical parameters across extended industrial temperature ranges

Applications

• Portable battery-powered instrumentation systems requiring low quiescent current
• Data acquisition systems utilizing analog-to-digital converter references
• Temperature sensing circuits needing stable voltage benchmarks

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS adherence as per manufacturer documentation. Confirm the package marking and pinout alignment with SOT-23-3 standards before integration. Ensure supply chain sources provide valid traceability documents matching the Texas Instruments part number structure.

Selection Notes

Select this component when a 3 V reference with 1% tolerance is required for space-constrained designs. The SOT-23-3 package facilitates automated surface-mount assembly processes. Consider the 150 PPM/°C temperature coefficient against application thermal stability requirements.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references from Texas Instruments. The series offers various fixed voltage options and accuracy grades. The Q designation typically denotes automotive or qualified reliability specifications, while D indicates the specific accuracy grade within the product line.

Replacement Considerations

LM4040D30QDBZR serves as a standard reel variant of the same electrical specification.