LM4041DIX3-1.2-T

Voltage Reference Overview

The LM4041DIX3-1.2-T is a precision two-terminal shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 1.225V with an initial accuracy of 1.0% and a maximum temperature coefficient of 150ppm/°C. The device operates within a wide current range of 60µA to 12mA and features low dynamic impedance for stable performance across varying loads. Packaged in the subminiature 3-pin SC70 surface-mount format, it eliminates the need for external stabilizing capacitors while tolerating any capacitive load. The component is guaranteed to function over the industrial temperature range of -40°C to +85°C.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC70 package designed for space-critical applications
• Laser-trimmed resistors ensure precise initial accuracy without external components
• Stable operation with any capacitive load without requiring output capacitors
• Low dynamic impedance maintains accuracy over a wide operating current range

Voltage Reference Applications

• Portable, battery-powered equipment
• Notebook computers
• Cell phones
• Industrial process controls

Voltage Reference Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging as specified in official documentation. Confirm the 'I' suffix indicates the -40°C to +85°C temperature range rather than the extended grade. Ensure the 'D' suffix matches the required 1.0% initial accuracy specification. Cross-reference the manufacturer designation to confirm Analog Devices Inc./Maxim Integrated sourcing.

Voltage Reference Selection Notes

Select this component when a fixed 1.225V reference is required in a compact footprint. The 1.0% accuracy grade suits applications where tighter tolerances are unnecessary. Verify that the minimum operating current of 60µA aligns with the system's quiescent requirements. Ensure the SC70 package dimensions fit the available board space constraints compared to larger SOT23 alternatives.

Voltage Reference Part Context

This part belongs to the LM4041 family of improved precision micropower shunt voltage references. The series offers multiple accuracy grades ranging from 0.1% to 1% and includes both adjustable and fixed voltage variants. The LM4041 utilizes bandgap circuitry to achieve stability and low noise, serving as a drop-in replacement for standard Zener diodes in precision analog circuits.

Voltage Reference Replacement Considerations

LM4041DIM3-1.2+T (SOT23-3 package)

Voltage Reference FAQ

Does the LM4041 require an external capacitor for stability?

No, the LM4041 does not require an external stabilizing capacitor and is stable with any capacitive load.

What is the function of Pin 3 on the SC70 package?

Pin 3 is designated as N.C. (Not Connected) and must be left floating or connected to Pin 2.