LM4051AEX3-1.2+T

Voltage Reference Overview

The LM4051AEX3-1.2+T is a precision two-terminal shunt-mode bandgap voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 1.225V with an initial accuracy of 0.1% and a maximum temperature coefficient of 50ppm/°C. The device operates within a wide current range of 60µA to 15mA and features low dynamic impedance. It is housed in a subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm) and is guaranteed over the -40°C to +125°C temperature range.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC70 surface-mount package
• Laser-trimmed resistors for high initial accuracy
• Stable operation without external stabilizing capacitors
• Capable of tolerating any capacitive load

Voltage Reference Applications

• Portable, battery-powered equipment
• Notebook computers
• Cell phones
• Industrial process controls
• Automotive systems

Voltage Reference Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and RoHS compliance status. Ensure that the selected component matches the required electrical specifications for your design. Cross-reference the part number with authorized distributors to confirm availability and authenticity before procurement.

Voltage Reference Selection Notes

Select this component when space constraints require a compact voltage reference solution. The 0.1% initial accuracy grade is suitable for applications demanding high precision. Consider the thermal resistance characteristics of the SC70 package if operating near the upper temperature limits or under high power dissipation conditions.

Voltage Reference Part Context

This component belongs to the LM4050/LM4051 family of micropower shunt voltage references. The LM4051 variant specifically offers a 1.225V output option alongside other standard voltages like 2.048V and 2.500V. The family utilizes BiCMOS processing technology to achieve stable performance across varying temperatures and currents.

Voltage Reference Replacement Considerations

LM4051BEX3-1.2+T

Voltage Reference FAQ

Does the LM4051AEX3-1.2+T require an external capacitor for stability?

No, the device does not require an external stabilizing capacitor and ensures stability with any capacitive loads.

What is the minimum operating current for this voltage reference?

The minimum operating current is typically 60µA, with a guaranteed minimum of 45µA.