LM4051AIM3X-1.2/NOPB

Voltage Reference Overview

The LM4051AIM3X-1.2/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225 V with an initial accuracy of 0.1%. The device features a temperature coefficient of 50 ppm/°C and supports a maximum shunt current of 12 mA. It operates within a temperature range of -40°C to +85°C and is housed in a SOT-23-3 surface-mount package.

Voltage Reference Feature Summary

• Provides stable 1.225 V reference voltage with high initial accuracy
• Operates as a micropower shunt reference without external stabilizing capacitor requirements
• Maintains performance across wide industrial temperature ranges

Voltage Reference Applications

• Portable instrumentation requiring low power consumption
• Battery-powered measurement systems
• Data acquisition systems needing precise voltage references

Voltage Reference Procurement Notes

Verify the complete part number including suffixes such as NOPB for lead-free compliance and specific packaging options like reel or cut tape. Confirm that the SOT-23-3 package matches your PCB footprint design. Ensure the operating temperature range meets your application's environmental requirements before finalizing procurement.

Voltage Reference Selection Notes

Select this component when a fixed 1.225 V reference is required with tight tolerance specifications. The 0.1% initial accuracy makes it suitable for high-precision applications. Consider the 12 mA maximum shunt current limit to ensure adequate biasing while maintaining low power consumption in battery-operated designs.

Voltage Reference Part Context

This component belongs to the LM4051 series of precision micropower shunt voltage references from Texas Instruments. The series offers various fixed voltage options and adjustable versions, all sharing similar low-power characteristics and compact SOT-23 packaging for space-constrained applications.

Voltage Reference Replacement Considerations

LM4051AIM3X-1.2/NOPB may be replaced by other LM4051 variants with compatible voltage and package if electrical parameters align. Verify pinout compatibility and thermal performance when substituting.