LM4140CCM-1.0

Voltage Reference Overview

The LM4140CCM-1.0 is a series precision voltage reference manufactured by Texas Instruments in an 8-pin SOIC package. It provides a fixed output voltage of 1.024 V with an initial accuracy of ±0.1% and a temperature coefficient of 10 ppm/°C. The device supports a maximum shunt current of 8 mA and operates within a junction temperature range of 0°C to +70°C. Maximum input voltage is 5.6 V, with typical supply currents of 230 µA or 265 µA depending on configuration.

Voltage Reference Feature Summary

• Provides high initial accuracy with low drift for stable reference performance
• Features ultra-low noise characteristics to minimize system interference
• Includes an enable pin for rapid shutdown and quick recovery capabilities

Voltage Reference Applications

• Precision data acquisition systems
• Battery-powered portable instrumentation
• High-resolution analog-to-digital converter references

Voltage Reference Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm the exact temperature grade and tolerance class. Ensure the ordering part number matches the required package style and electrical specifications before procurement. Cross-reference datasheet revisions to confirm compliance with current manufacturing standards.

Voltage Reference Selection Notes

Select this component when a fixed 1.024 V reference is required with moderate temperature stability. The 8 mA output current capability suits applications needing higher drive than standard shunt references. Verify that the operating environment remains within the specified commercial temperature limits for optimal performance.

Voltage Reference Part Context

This part belongs to the LM4140 series of micropower low-dropout voltage references. The series combines high accuracy with low power dissipation in small packages. It serves as a drop-in replacement for older generation references while offering improved noise and drift specifications for modern precision analog circuits.

Voltage Reference Replacement Considerations

LM4140ACM-1.0/NOPB offers similar functionality with a wider temperature range and lower drift.