LM4140BCMX-4.1

Voltage Reference Overview

The LM4140BCMX-4.1 is a micropower low-dropout series voltage reference manufactured by Texas Instruments, housed in an SOIC-8 narrow surface-mount package. It provides a nominal output voltage of 4.096 V with an initial accuracy of 0.1 percent and a temperature coefficient of 6 PPM per degree Celsius. The device operates within a junction temperature range of 0 to +70 degrees Celsius, supports a maximum input voltage of 5.6 V, and draws a quiescent current of approximately 230 uA.

Voltage Reference Feature Summary

• Micropower low-dropout architecture designed for minimal current consumption
• High precision performance with 0.1% initial accuracy and 6 ppm/C temperature coefficient
• Integrated enable pin functionality for power management control

Voltage Reference Applications

• Portable instrumentation systems requiring precise voltage regulation
• Battery-powered measurement devices needing low quiescent current
• Data acquisition systems utilizing high-resolution analog-to-digital converters

Voltage Reference Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with required operating temperatures and accuracy grades. Confirm RoHS compliance status as historical batches may vary. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Voltage Reference Selection Notes

Select this component when a stable 4.096 V reference is needed in space-constrained designs. The SOIC-8 package facilitates automated assembly. Ensure the application voltage does not exceed the 5.6 V maximum input limit. Consider the 0 to +70 C industrial temperature range suitability for the intended environment.

Voltage Reference Part Context

This device belongs to the LM4140 family of precision voltage references from Texas Instruments. It serves as a compact alternative to larger shunt references, offering series regulation capabilities. The family is characterized by low noise and high stability, making it suitable for demanding analog signal conditioning applications where power efficiency is critical.

Voltage Reference Replacement Considerations

LM4140BCM-4.1/NOPB: Direct equivalent with identical electrical specifications and pinout.