LM4050AEM3-4.1+T

Voltage Reference Overview

The LM4050AEM3-4.1+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 4.096V with an initial accuracy of 0.1% and a maximum temperature coefficient of 50ppm/°C over the -40°C to +125°C range. The device operates within a wide shunt current range of 60µA to 15mA, featuring low dynamic impedance and 28µVRMS output noise (10Hz to 10kHz). Packaged in a 3-pin SOT-23 surface-mount format, it requires no external stabilizing capacitor and tolerates capacitive loads.

Voltage Reference Feature Summary

• Ultra-small 3-pin SOT-23 package for space-critical applications
• Laser-trimmed resistors ensure high initial accuracy
• Stable performance across wide operating currents without external capacitors
• Capable of handling 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 official documentation to confirm package type and qualification status. Confirm that the component meets required environmental standards for the intended deployment environment. Cross-reference the manufacturer's latest datasheet revision to ensure all electrical characteristics align with design specifications before final procurement decisions.

Voltage Reference Selection Notes

Select this component when a compact footprint is required alongside high precision. The 0.1% accuracy grade suits applications demanding tight voltage tolerance. Ensure the circuit design maintains shunt current between 60µA and 15mA for optimal regulation. Consider thermal derating if operating near maximum junction temperatures or under high power dissipation conditions.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of micropower shunt voltage references. These devices utilize bandgap principles to maintain stable output voltages. The series offers multiple fixed breakdown voltages including 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. They are designed as direct replacements for standard Zener diodes in precision reference circuits.

Voltage Reference Replacement Considerations

LM4050CEX3-4.1+T

Voltage Reference FAQ

Does the LM4050AEM3-4.1+T require an external stabilizing capacitor?

No, the device does not require an external stabilizing capacitor and remains stable with any capacitive load.

What is the minimum operating current for this reference?

The minimum operating current is typically 73µA, with a guaranteed minimum of 50µA.