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LM4040DIM3-2.0/NOPB

LM4040DIM3-2.0/NOPB Description

The LM4040DIM3-2.0/NOPB is a high-precision, 2.048V shunt voltage reference from National Semiconductor, designed for applications requiring stable and accurate voltage regulation. This surface-mount (SOT-23-3) device operates as a fixed-output shunt reference with a ±1% tolerance, ensuring reliable performance in precision circuits. With a low noise level of 35µVrms (10Hz to 10kHz) and a temperature coefficient of 150ppm/°C, it delivers excellent stability across varying environmental conditions. Although marked as obsolete, it remains a robust choice for legacy designs due to its ROHS3 compliance and low cathode current (70 µA).

LM4040DIM3-2.0/NOPB Features

• Fixed 2.048V output with ±1% tolerance for high accuracy.
• Low noise (35µVrms) and 150ppm/°C tempco for stable performance.
• Shunt reference topology simplifies circuit integration.
• Low operating current (70 µA) minimizes power consumption.
• 15mA output current capability supports diverse loads.
• Surface-mount SOT-23-3 package for compact PCB designs.
• ROHS3 compliant and EAR99/ECCN classified for global usability.

LM4040DIM3-2.0/NOPB Applications

Ideal for precision voltage reference needs, the LM4040DIM3-2.0/NOPB excels in:

• ADC/DAC reference circuits requiring low-noise, stable voltage.
• Power management systems in portable and battery-operated devices.
• Sensor calibration and test/measurement equipment due to its high accuracy.
• Industrial control systems where temperature stability is critical.
• Legacy electronics maintenance where obsolete part replacements are needed.

Conclusion of LM4040DIM3-2.0/NOPB

The LM4040DIM3-2.0/NOPB offers a balance of precision, low noise, and compact design, making it suitable for demanding analog applications. While obsolete, its ±1% tolerance, low power consumption, and robust performance ensure continued relevance in legacy and precision systems. Engineers seeking a reliable 2.048V reference with proven stability will find this device a practical solution.