LM4041AILT-1.2

Overview

The STMicroelectronics LM4041AILT-1.2 is a micropower shunt voltage reference providing a fixed 1.225 V output. It features an initial accuracy of ±0.1% at 25 °C and a maximum temperature coefficient of 100 ppm/°C. The device operates within a current range of 50 µA to 12 mA and maintains stability with capacitive loads without requiring external stabilization components. It is housed in a surface-mount SOT-23-3 package and supports an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Provides stable 1.225 V reference voltage with high precision
• Operates with ultra-low quiescent current for power efficiency
• Capable of driving capacitive loads without external compensation
• Available in compact surface-mount packaging

Applications

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

Procurement Notes

Verify the specific suffix LT indicates tape-and-reel packaging when ordering. Confirm the A grade designation corresponds to the required ±0.1% tolerance for your design. Ensure the SOT-23-3 footprint matches your PCB layout constraints. Check for RoHS compliance status if environmental regulations apply to your manufacturing process.

Selection Notes

Select this component when space is limited due to its small SOT-23-3 form factor. Choose this part for applications requiring low power consumption given its microampere operating range. Consider this device for designs needing high initial accuracy without complex calibration. Verify that the 1.225 V output level aligns with your system's reference requirements.

Part Context

This component belongs to the LM4041 family of precision micropower shunt voltage references. The series offers various accuracy grades and output voltages. The LM4041AILT-1.2 specifically targets industrial applications requiring reliable performance in a minimal footprint. It serves as a drop-in replacement for similar shunt references in existing designs.

Replacement Considerations

Texas Instruments LM4041B12IDBZR is listed as a similar alternative.