LM4140ACM-4.1

Voltage Reference Overview

The LM4140ACM-4.1 is a micropower series voltage reference manufactured by Texas Instruments, designed for applications requiring high precision and low power consumption. It provides a nominal output voltage of 4.096 V with an initial accuracy of 0.1%. The device operates within a temperature range of 0°C to +70°C and features a low temperature coefficient of 10 ppm/°C. It is housed in an SOIC-8 surface-mount package and draws a typical operating supply current of 230 µA. The maximum input voltage is 5.6 V, and the maximum shunt current is 8 mA.

Voltage Reference Feature Summary

• Micropower operation with low quiescent current consumption suitable for battery-powered systems
• High precision performance with 0.1% initial accuracy and low temperature drift
• Series regulator architecture providing stable reference voltage under varying load conditions

Voltage Reference Applications

• Portable instrumentation requiring precise voltage references
• Battery-operated measurement devices
• Data acquisition systems needing stable analog references

Voltage Reference Procurement Notes

Verify the specific suffix and marking code on the component body to confirm the exact variant, as packaging and tape/reel options may vary. Ensure the selected part meets the required operating temperature range of 0°C to +70°C for your application environment. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Voltage Reference Selection Notes

Select this component when a fixed 4.096 V reference with 0.1% accuracy is required in an SOIC-8 package. Consider the 10 ppm/°C temperature coefficient for thermal stability needs. Verify that the system input voltage does not exceed the 5.6 V maximum limit and that the load current remains within the 8 mA shunt current specification.

Voltage Reference Part Context

This device belongs to the LM4140 family of micropower series voltage references from Texas Instruments. The family offers various output voltages and accuracy grades, catering to different precision requirements. The LM4140ACM-4.1 specifically targets applications where space constraints and low power consumption are critical, utilizing the compact SOIC-8 footprint.

Voltage Reference Replacement Considerations

LM4140ACM-4.1/NOPB is a lead-free version of the same functional device. Other variants in the LM4140 series with different output voltages or accuracy grades may serve as alternatives if electrical parameters align with system requirements.