LM4140BCMX-4.1/NOPB

Voltage Reference Overview

The LM4140BCMX-4.1/NOPB is a micropower low-dropout series voltage reference manufactured by Texas Instruments, housed in an SOIC-8 Narrow surface-mount package. It provides a fixed output voltage of 4.096 V with an initial accuracy of 0.1% and a temperature coefficient of 6 PPM/°C. The device operates within a maximum input voltage of 5.6 V and supports a maximum shunt current of 8 mA. It functions reliably across a temperature range from 0°C to +70°C.

Voltage Reference Feature Summary

• Micropower low-dropout series voltage reference design
• High precision with 0.1% initial accuracy
• Low temperature coefficient for stable performance
• Integrated enable pin functionality

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) references
• Digital-to-analog converter (DAC) voltage sources
• Battery-powered instrumentation systems
• Portable measurement equipment

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm the 'CMX' suffix corresponds to the cut-tape or reel packaging format rather than tube packaging. Ensure the operating temperature range aligns with system requirements before procurement.

Voltage Reference Selection Notes

Select this component when a precise 4.096 V reference is required in a compact SOIC-8 package. It is suitable for applications demanding low quiescent current and high stability over temperature. Compare against other LM4140 variants if different output voltages or tighter tolerance grades are needed.

Voltage Reference Part Context

This part belongs to the LM4140 family of precision micropower voltage references. It shares architectural similarities with other members like the LM4140ACM and LM4140BCM series but differs in specific output voltage, accuracy grade, and packaging configuration. The device is designed for applications requiring stable reference voltages with minimal power consumption.

Voltage Reference Replacement Considerations

Direct substitutes include LM4140BCM-4.1/NOPB and LM4140ACM-4.1/NOPB, provided the package and electrical specifications match the design requirements.