LM4128CMFX-2.0/NOPB

Voltage Reference Overview

The LM4128CMFX-2.0/NOPB is a precision micropower series voltage reference manufactured by Texas Instruments, housed in an SOT-23-5 surface-mount package. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±0.5%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 100 ppm/°C. Key electrical specifications include a maximum input voltage of 6 V, a maximum shunt current of 20 mA, and a typical operating supply current of 60 µA.

Voltage Reference Feature Summary

• Provides a stable 2.048 V reference voltage suitable for high-precision applications
• Designed for low-power consumption with a micropower operating profile
• Engineered for wide industrial temperature operation capabilities

Voltage Reference Applications

• Portable instrumentation systems requiring precise voltage standards
• Battery-powered measurement devices needing efficient power management
• Data acquisition channels utilizing analog-to-digital conversion

Voltage Reference Procurement Notes

Verify the specific suffix 'CMF' corresponds to the required accuracy grade and packaging format. Confirm that the 'NOPB' designation indicates lead-free compliance and RoHS adherence as per the manufacturer's latest documentation. Ensure the ordering quantity matches the available reel or cut tape options provided by the distributor.

Voltage Reference Selection Notes

Select this component when a 2.048 V output is specifically required with ±0.5% initial accuracy. Consider the 100 ppm/°C temperature coefficient against application thermal stability needs. Evaluate the 60 µA supply current against system power budgets and verify compatibility with the SOT-23-5 footprint constraints.

Voltage Reference Part Context

This part belongs to the LM4128 family of precision micropower series voltage references from Texas Instruments. It shares functional characteristics with other variants in the series but is distinguished by its specific 2.048 V output voltage and commercial-grade temperature rating. The device serves as a fundamental reference element in mixed-signal circuit designs.

Voltage Reference Replacement Considerations

LM4128AMFX-2.0/NOPB offers higher accuracy at 0.1%, while LM4128DMFX-2.0/NOPB provides 1% accuracy. For automotive applications, consider the LM4128AQ1MFX-2.0/NOPB variant which meets AEC-Q100 qualification standards.