LM4050AIX3-3.0-T

Voltage Reference Overview

The LM4050AIX3-3.0-T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 3.0V 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 features low output noise of 28µVrms (10Hz to 10kHz). It is housed in a subminiature SC-70-3 surface-mount package and functions reliably over a temperature range of -40°C to +125°C without requiring external stabilizing capacitors.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC-70 surface-mount package for space-critical applications
• Laser-trimmed resistors ensure high initial accuracy
• Capable of stable operation across a wide operating current range
• No external stabilizing capacitor required for stability

Voltage Reference Applications

• Portable battery-powered equipment
• Handheld instruments
• Data acquisition systems
• Telecommunications equipment

Voltage Reference Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm that the 'A' grade designation corresponds to the required ±0.1% initial accuracy specification. Ensure the SC-70-3 footprint matches the target PCB layout. Check for RoHS compliance status as per the manufacturer's latest documentation.

Voltage Reference Selection Notes

Select this component when a compact form factor is required alongside high precision. The 3.0V output suits applications needing a specific reference level without additional scaling. Consider the 50ppm/°C temperature coefficient for environments with significant thermal variations. The micropower consumption makes it suitable for battery-operated designs.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of two-terminal shunt voltage references. The series offers multiple fixed reverse breakdown voltages including 1.225V, 2.048V, 2.500V, 3.3V, 4.096V, and 5.000V. The LM4050 variant typically provides higher accuracy grades compared to the LM4051.

Voltage Reference Replacement Considerations

LM4050AEX3-3.0+T is a verified substitute with identical electrical specifications and SC-70-3 packaging.