LM4140BCM-1.2

Voltage Reference Overview

The LM4140BCM-1.2 is a micropower low-dropout series voltage reference manufactured by Texas Instruments, housed in an SOIC-Narrow-8 package. It provides a fixed output voltage of 1.25 V with an initial accuracy of 0.1% and a temperature coefficient of 6 PPM/°C. The device supports a maximum input voltage of 5.6 V and features a maximum shunt current of 8 mA. It operates within a temperature range of 0°C to +70°C.

Voltage Reference Feature Summary

• Provides high precision with 0.1% initial accuracy for stable reference applications
• Features low temperature drift of 6 PPM/°C ensuring stability across operating ranges
• Designed as a micropower device suitable for energy-efficient circuits

Voltage Reference Applications

• Precision measurement systems requiring stable voltage references
• Data acquisition systems needing accurate analog-to-digital conversion references
• Battery-powered instrumentation where low power consumption is critical

Voltage Reference Procurement Notes

Verify the specific suffix BCM-1.2 against the official datasheet to confirm the package type (SOIC-Narrow-8) and output voltage (1.25 V). Ensure the order matches the required temperature grade (C-grade, 0°C to +70°C) and accuracy class (B-grade, 0.1%). Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Voltage Reference Selection Notes

Select this component when a fixed 1.25 V reference is required with high initial accuracy and low temperature drift. It is suitable for designs prioritizing precision over ultra-low noise or wider industrial temperature ranges. Compare against other LM4140 variants if different output voltages or packages are needed.

Voltage Reference Part Context

This part belongs to the LM4140 family of micropower low-dropout voltage references from Texas Instruments. These devices are designed to provide stable voltage references for various electronic applications, offering better performance than standard zener diodes while maintaining low power consumption.

Voltage Reference Replacement Considerations

Check for direct replacements within the LM4140 family with different output voltages or packages. Verify compatibility with alternative manufacturers' precision voltage references that offer similar accuracy and temperature coefficients.