LM4041BIX3-1.2

Overview

The LM4041BIX3-1.2 is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 1.225 V with an initial accuracy of 0.2% at 25°C and a temperature coefficient of 100 ppm/°C. The device operates within a current range from a minimum of 60 µA to a maximum shunt current of 12 mA. It is housed in a compact SOT-23-3 surface-mount package and supports an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• Provides stable 1.225 V output without requiring external stabilizing capacitors
• Ensures stability across all capacitive loads for simplified circuit design
• Offers high precision with low temperature drift characteristics

Applications

• Data acquisition systems
• Battery-powered equipment
• Power supply monitoring circuits

Procurement Notes

Verify the manufacturer designation, as this component may be sourced from either Analog Devices or Texas Instruments due to historical lineage. Confirm the specific suffix indicates the B-grade accuracy and IX3 packaging variant. Ensure the requested temperature range matches the industrial specification limits required for your application environment.

Selection Notes

Select this part when space constraints require a small SOT-23-3 footprint combined with precise voltage referencing. It is suitable for designs needing low quiescent current operation while maintaining stability under varying capacitive load conditions. Consider alternative grades if tighter tolerance or extended temperature ranges are necessary.

Part Context

This component belongs to the LM4041-N family of precision micropower shunt voltage references. The series is characterized by its ability to operate without output capacitors and its availability in multiple accuracy grades. The LM4041BIX3-1.2 specifically represents the B-grade version with 0.2% initial accuracy in the SC-70/SOT-23 form factor.

Replacement Considerations

LM4041AIM3X-1.2/NOPB: Offers higher A-grade accuracy (0.1%). LM4041DIM3X-1.2/NOPB: Provides C-grade accuracy (0.5%) in a similar package.