LM4050AEM3X-2.0/NOPB

Voltage Reference Overview

The LM4050AEM3X-2.0/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, housed in a SOT-23-3 surface-mount package. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±0.1% and a temperature coefficient of 50 ppm/°C. The device operates within a junction temperature range of -40°C to +125°C and supports a maximum cathode current of 15 mA. It features low noise characteristics, specified at 41 µVrms from 10 Hz to 10 kHz, and draws a typical cathode current of 65 µA.

Voltage Reference Feature Summary

• Provides stable precision voltage referencing through a micropower shunt architecture suitable for space-constrained designs.
• Ensures high accuracy with tight initial tolerance and low temperature drift across the industrial operating range.
• Delivers low-noise performance to maintain signal integrity in sensitive analog circuits.

Voltage Reference Applications

• Portable battery-powered instrumentation requiring low quiescent current
• Data acquisition systems needing precise analog-to-digital converter references
• Medical equipment requiring stable voltage sources in compact form factors

Voltage Reference Procurement Notes

Verify the specific suffix and tape-and-reel packaging configuration against the manufacturer's latest datasheet before ordering. Confirm that the component meets RoHS3 compliance requirements for your region. Check for any active Product Change Notifications or discontinuance notices associated with this part number to ensure long-term supply availability.

Voltage Reference Selection Notes

Select this component when a fixed 2.048 V reference with ±0.1% accuracy is required in a SOT-23-3 package. Consider the 50 ppm/°C temperature coefficient and 15 mA load capability for circuit design. Ensure the application benefits from the low 65 µA operating current and 41 µVrms noise specification compared to higher-power alternatives.

Voltage Reference Part Context

This part belongs to the LM4050-N series of micropower shunt voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades, all sharing the same compact SOT-23-3 footprint and low-power operational characteristics designed for portable and battery-operated applications.

Voltage Reference Replacement Considerations

LM4050CEM3X-2.0/NOPB (±0.5% accuracy)

Voltage Reference FAQ

What is the typical cathode current consumption?

The typical cathode current is 65 µA.

What is the noise specification over the frequency range?

The noise is 41 µVrms from 10 Hz to 10 kHz.