LM4041DIM7X-1.2

Voltage Reference Overview

The LM4041DIM7X-1.2 is a micropower shunt voltage reference manufactured by Texas Instruments, formerly National Semiconductor. It provides a fixed output voltage of 1.225 V with an initial accuracy of 1% at 25 °C and a maximum temperature coefficient of 150 ppm/°C. The device operates within a wide current range from 45 μA to 12 mA and functions reliably across industrial (-40°C to +85°C) and extended (-40°C to +125°C) temperature ranges. Packaged in the SC-70 (SOT323-5L) surface-mount format, it requires no external capacitors for stability.

Voltage Reference Feature Summary

• Provides stable 1.225 V output without requiring external capacitors
• Operates with ultra-low quiescent current suitable for power-constrained designs
• Maintains stability across all capacitive load conditions
• Available in space-saving surface-mount packages

Voltage Reference Applications

• Data acquisition systems
• Portable battery-powered equipment
• Precision audio circuits
• Process control instrumentation

Voltage Reference Procurement Notes

Verify the manufacturer designation carefully, as the component was originally produced by National Semiconductor before its acquisition by Texas Instruments. Confirm that the specific suffix indicates the D grade (1% tolerance) and the DIM7X package variant. Ensure the ordering part number matches the required temperature range and pin configuration for your PCB layout.

Voltage Reference Selection Notes

Select this component when a low-cost, fixed 1.225 V reference is needed in a small footprint. It is appropriate for applications where 1% initial accuracy is sufficient and minimal operating current is critical. Consider higher grades if tighter tolerances or lower temperature coefficients are required.

Voltage Reference Part Context

This device belongs to the LM4041 family of precision micropower shunt voltage references. The family offers various output voltages and accuracy grades, including adjustable versions. The LM4041 series is designed for applications requiring high stability and low power consumption in compact electronic systems.

Voltage Reference Replacement Considerations

LM4041BIM7X-1.2/NOPB: Offers improved 0.2% accuracy and 100 ppm/°C temperature coefficient in the same package.