LM4050AIX3-2.5-T

Voltage Reference Overview

The LM4050AIX3-2.5-T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 50ppm/°C. The device operates within a wide current range from 60µA to 15mA and functions reliably across temperatures from -40°C to +125°C. It utilizes a compact SC-70-3 surface-mount package.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC-70 surface-mount package for space-critical applications
• Laser-trimmed resistors ensure high initial accuracy without external capacitors
• Wide operating current range ensures stable reverse breakdown voltage accuracy
• Low dynamic impedance maintains performance over wide temperature ranges

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'IX3' against official manufacturer documentation, as standard listings typically utilize 'EX3' for the SC-70 package. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the ordering part number matches the required accuracy grade and package type specified in the design requirements.

Voltage Reference Selection Notes

Select this component when a small footprint and high precision are required for shunt-mode voltage referencing. The 2.5V output is suitable for low-voltage ADC references. Consider the 60µA minimum current requirement for biasing networks. Verify that the SC-70 package dimensions fit the PCB layout constraints compared to larger SOT-23 alternatives.

Voltage Reference Part Context

This part belongs to the LM4050 family of precision micropower shunt voltage references. The family offers multiple fixed reverse breakdown voltages including 1.225V, 2.048V, 3.000V, and 5.000V. The 'A' grade denotes the highest accuracy tier within the series, providing ±0.1% initial accuracy compared to lower grades like 'C' or 'B'.

Voltage Reference Replacement Considerations

Check for direct substitutes such as LM4050CEM3-2.5+T or LM4050AIM3-2.5 if pin compatibility allows. Verify that alternative packages like SOT-23-3 maintain the same electrical characteristics and thermal performance.