LM4050CIM3-4.1+

Voltage Reference Overview

The LM4050CIM3-4.1+ is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 4.096V with an initial accuracy of 0.5%. The device features a maximum temperature coefficient of 50ppm/°C, guaranteed over an operating temperature range from -40°C to +125°C. It operates within a shunt current range of 60µA to 15mA and utilizes a compact SOT-23-3 surface-mount package.

Voltage Reference Feature Summary

• Provides stable reference voltage without requiring external stabilizing capacitors
• Maintains accuracy across wide operating temperatures and current variations
• Utilizes laser-trimmed resistors for high initial precision

Voltage Reference Applications

• Portable instrumentation circuits
• Battery-powered measurement systems
• Data acquisition systems

Voltage Reference Procurement Notes

Verify the manufacturer designation on the component marking, as the LM4050 series was originally developed by Maxim Integrated before its acquisition by Analog Devices. Confirm that the specific suffix matches the required tolerance grade and package type for your design requirements. Ensure compatibility with existing supply chains given the corporate transition history.

Voltage Reference Selection Notes

Select this component when a 4.096V reference is needed in a space-constrained SOT-23 footprint. It is suitable for applications requiring low power consumption and moderate precision. Compare against the LM4040 series if higher accuracy or different voltage options are required. Ensure the circuit design supports the minimum operating current of 60µA for proper regulation.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of two-terminal shunt voltage references. The family offers multiple fixed voltage options including 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. The devices are designed for applications where size and power efficiency are critical constraints.

Voltage Reference Replacement Considerations

LM4050CIM3-4.1/NOPB (Texas Instruments equivalent)

Voltage Reference FAQ

Does the LM4050CIM3-4.1+ require an output capacitor?

No, the LM4050CIM3-4.1+ does not require an external stabilizing capacitor and ensures stability with any capacitive loads.

What is the operating temperature range?

The specifications are guaranteed over a temperature range of -40°C to +125°C.