LM4128CMF-2.5/NOPB

Voltage Reference Overview

The LM4128CMF-2.5/NOPB is a precision micropower series voltage reference manufactured by Texas Instruments, housed in a SOT-23-5 surface-mount package. It provides a fixed output voltage of 2.5 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. Maximum input voltage is 6 V, with a maximum shunt current of 20 mA.

Voltage Reference Feature Summary

• Provides stable reference voltage for analog circuits
• Operates at low quiescent current levels
• Designed for compact surface-mount applications

Voltage Reference Applications

• Portable instrumentation systems
• Battery-powered measurement devices
• Data acquisition signal conditioning

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS status. Confirm the 'CMF' designation matches the required commercial grade temperature range and accuracy specifications. Ensure the SOT-23-5 footprint aligns with the target PCB layout requirements before finalizing procurement.

Voltage Reference Selection Notes

Select this component when a fixed 2.5 V reference is required in space-constrained designs. The 0.5% initial accuracy suits general-purpose applications where higher precision grades are unnecessary. Consider the 100 ppm/°C drift if operating across wide thermal variations.

Voltage Reference Part Context

This part belongs to the LM4128 family of micropower series voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades, all sharing the same low-power architecture and SOT-23-5 packaging format for consistent design integration across different voltage requirements.

Voltage Reference Replacement Considerations

LM4128DMF-2.5/NOPB: Offers 1% accuracy instead of 0.5%. LM4128AMF-2.5/NOPB: Provides 0.1% accuracy. LM4128BMF-2.5/NOPB: Provides 0.2% accuracy. All share identical pinouts and electrical characteristics except for initial accuracy tolerance.