LM4140CCM-1.2

Voltage Reference Overview

The LM4140CCM-1.2 is a micropower low-dropout series voltage reference manufactured by Texas Instruments, housed in an SOIC-8 package. It provides a fixed output voltage of 1.25 V with an initial accuracy of 0.1% and a temperature coefficient of ±10 ppm/°C. The device supports a maximum input voltage of 5.6 V and a maximum shunt current of 8 mA. It operates within a temperature range of 0°C to +70°C and typically draws a supply current of 230 µA.

Voltage Reference Feature Summary

• Provides high precision with 0.1% initial accuracy for stable reference applications
• Features low temperature drift of ±10 ppm/°C to maintain stability across operating conditions
• Designed as a micropower device with low typical supply current for energy efficiency

Voltage Reference Applications

• Precision data acquisition systems requiring stable voltage references
• Battery-powered portable instrumentation due to low power consumption
• Analog-to-digital converter (ADC) reference inputs

Voltage Reference Procurement Notes

Verify the specific suffix 'CCM' indicates the commercial temperature grade (0°C to +70°C) and SOIC-8 tube packaging. Confirm RoHS compliance status via the manufacturer's official documentation, as historical variants may differ. Ensure the ordering part number matches the required output voltage tolerance and package type exactly before procurement.

Voltage Reference Selection Notes

Select this component when a fixed 1.25 V reference is needed with 0.1% accuracy in a surface-mount SOIC-8 package. It is suitable for designs requiring low quiescent current and moderate temperature stability. Compare against higher-grade variants like the ACM or BCM if tighter temperature coefficients or wider operating ranges are required.

Voltage Reference Part Context

This part belongs to the LM4140 family of precision micropower low-dropout voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades. The CCM variant specifically denotes the commercial temperature range and standard accuracy level within the series.

Voltage Reference Replacement Considerations

LM4140CCMX-1.2/NOPB: Tape-and-reel version of the same electrical specifications and package.

Voltage Reference FAQ

What is the maximum input voltage for the LM4140CCM-1.2?

The maximum series reference input voltage is 5.6 V.

Does the LM4140CCM-1.2 include an enable pin?

Yes, the LM4140 series includes an enable pin to control operation and reduce current consumption.