Product Overview: LM4128DMFX-3.3 Precision Voltage Reference

The LM4128DMFX-3.3 is a high-precision voltage reference module from Texas Instruments, renowned for its stability and accuracy. This device is part of TI's LM4128 series, which offers excellent temperature stability and low dynamic impedance, making it a perfect choice for precision applications. The LM4128DMFX-3.3 provides a fixed 3.3V output, with an impressive initial accuracy of ±0.1% and a guaranteed temperature coefficient of 100 ppm/°C or less, ensuring reliable performance across a wide range of operating conditions.

Key Features

• Output Voltage: Fixed 3.3V with high precision.
• Initial Accuracy: ±0.1% max at 25°C.
• Temperature Coefficient: 100 ppm/°C max, providing excellent temperature stability.
• Low Dropout Voltage: Typically 60mV at 1mA load, enabling operation with minimal headroom above the output voltage.
• Low Output Noise: 4 μV RMS (10 Hz to 10 kHz), ideal for noise-sensitive applications.
• Supply Current: 60 μA (typical), reducing power consumption.
• Load Regulation: 75 ppm/mA (typical), maintaining output consistency under varying loads.
• Long-Term Stability: Typically 150 ppm/1000 hours at 125°C, ensuring lasting reliability.
• Package: SOT-23-5 package, suitable for space-constrained applications.

Applications

The LM4128DMFX-3.3 is designed to serve in a variety of applications where precision voltage reference is critical. It is particularly well-suited for:

• Data Converters (ADCs/DACs)
• Portable and Battery-Powered Equipment
• Precision Power Supplies
• Industrial Instrumentation
• Automotive Electronics
• Medical Devices

Quality and Reliability

As with all Texas Instruments products, the LM4128DMFX-3.3 is manufactured to the highest quality standards, ensuring robust performance and longevity in the field. Its precision and durability make it a trusted component in critical systems worldwide.

For detailed specifications, application notes, and additional resources, designers and engineers are encouraged to consult the official Texas Instruments datasheets and product guides.