LM4041DEM3-1.2-T

Voltage Reference Overview

The LM4041DEM3-1.2-T is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated, providing a stable 1.225 V output. It features an initial accuracy of ±1% at 25 °C and operates within a temperature range of -40 °C to +125 °C. The device draws a typical operating current of 73 µA with a maximum cathode current of 12 mA. It utilizes a SOT-23-3 surface-mount package and exhibits a noise level of 20 µVrms from 10 Hz to 10 kHz.

Voltage Reference Feature Summary

• Provides a fixed 1.225 V reference voltage with high precision.
• Operates without the need for external stabilizing capacitors.
• Maintains stability when connected to capacitive loads.
• Designed for space-constrained applications using compact packaging.

Voltage Reference Applications

• Portable battery-powered instrumentation
• Handheld meters
• Temperature measurement systems
• Data acquisition circuits

Voltage Reference Procurement Notes

Verify that the ordering suffix matches the required tolerance grade and temperature range specifications. Confirm the manufacturer designation aligns with project requirements, as production may transition between Maxim Integrated and Texas Instruments. Ensure the component meets RoHS compliance standards for the intended deployment environment.

Voltage Reference Selection Notes

Select this component for designs requiring low power consumption and high accuracy in minimal board space. The absence of external stabilization components simplifies the circuit layout. Consider the specific accuracy grade and thermal performance limits when determining suitability for the target application conditions.

Voltage Reference Part Context

This part belongs to the LM4041-N family of precision micropower shunt voltage references. The series offers various accuracy grades and temperature ranges, utilizing advanced bandgap technology to ensure stable performance across wide operating conditions. It serves as a reliable reference source for analog signal processing tasks.

Voltage Reference Replacement Considerations

LM4041DEM3-1.2/NOPB is a confirmed substitute offering identical electrical characteristics and pinout compatibility within the same package configuration.