LM4040AIZ-4.1/NOPB

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Voltage references are essential components used in a wide range of applications including analog-to-digital, digital-to-analog, multi-range circuit, power supply and LED backlight driver. The LM4040AIZ-4.1/NOPB is a high precision voltage reference designed to provide an accurate, temperature-compensated 4.1V output with a low 0.1% initial tolerance and excellent accuracy over temp and line. In this article, we\'ll take a look at the LM4040AIZ-4.1/NOPB\'s application field and working principle.

Application Field

The LM4040AIZ-4.1/NOPB has a wide range of applications, from providing a reference source for multi-range circuit, to micro processors and data converters, to providing a bias for active power supplies and so much more. The device provides a low temperature coefficient over a wide temperature range and a low 0.1% initial tolerance at 4.1 V.

The LM4040AIZ-4.1/NOPB can be used in a wide variety of applications including:

• Supply voltage reference
• Micro-power voltage references
• Analog-to-digital converters
• Digital-to-analog converters
• Multi-range circuits
• Power supply rail trim
• LED backlight drivers
• Resistor ratioing
• Oscillator circuits

Working Principle

The LM4040AIZ-4.1/NOPB is an advanced band gap voltage reference designed for precision voltage regulation. It incorporates a temperature-compensated Zener diode array with a two-stage amplifier to provide a low 0.1% initial accuracy tolerance, low temperature coefficient and excellent accuracy over temperature and line. It features a very low supply current at 2.2 mA and a wide supply voltage range of 2V to 20V.

The LM4040AIZ-4.1/NOPB is designed to provide a stabilized voltage reference. This is accomplished by using the voltage reference amplifier to accurately adjust the Zener diode array’s output voltage. The Zener diodes in the array are temperature compensated by a temperature-compensated resistor with a higher temperature coefficient than the temperature coefficient of the Zener diode junction itself. The LM4040AIZ-4.1/NOPB also incorporates an error amplifier that establishes a stable voltage across the temperature compensation resistor. This effectively stabilizes the voltage output from the Zener diode array.

The LM4040AIZ-4.1/NOPB also includes a wide range of protection features. It includes short circuit protection, and over voltage protection. The LM4040AIZ-4.1/NOPB also includes a temperature-compensated current limit circuit that can provide inrush current limitation and output current limit protection when configured with an external resistor.

The LM4040AIZ-4.1/NOPB also has a low noise level, making it an ideal choice for high-precision applications. In addition, it can be used in applications where low power consumption is required while maintaining a high degree of accuracy. The LM4040AIZ-4.1/NOPB also comes in a lead-free package and is available in single and dual versions.

Conclusion

The LM4040AIZ-4.1/NOPB is a versatile voltage reference device with an excellent set of features that make it suitable for precision applications. It has a low 0.1% initial accuracy tolerance, low temperature coefficient, low supply current and wide supply voltage range, making it an ideal choice for powering digital and analog integrated circuits. It also includes a wide range of protection features, making it suitable for a wide range of applications.

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