LM4040A30IDBR – TEXAS INSTRUMENTS

The Texas Instruments LM4040A30IDBR is a 3.0V shunt precision voltage reference in a compact SOT-23-5 surface-mount package. This device offers a highly stable output voltage with a typical initial accuracy of ±0.1% and a temperature coefficient of ±20ppm/°C over its operating temperature range of -40°C to +125°C. The low output noise of 10µVrms (typical) makes it suitable for applications requiring high precision and low noise characteristics. Its low quiescent current of approximately 150µA minimizes power consumption._x000D_
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The LM4040A30IDBR utilizes a bandgap reference design, providing a stable voltage independent of supply current fluctuations within its specified operating range (typically 4V to 30V). Common applications include A/D converter references, precision voltage comparators, and setting reference voltages in instrumentation amplifiers where high accuracy and stability are crucial. Its small form factor and surface mount packaging facilitate high-density PCB designs. The device’s inherent stability reduces the need for external trimming components, simplifying circuit design and minimizing board space. While offering comparable precision to higher-cost alternatives, the LM4040A30IDBR presents a cost-effective solution for many precision voltage reference applications.