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LM4051AEM3X-ADJ/NOPB Voltage Reference

The LM4051AEM3X-ADJ/NOPB voltage reference is one of a family of adjustable and fixed shunt voltage references from Texas Instruments. It is a powerful, intuitive, and easy-to-use series of voltage references that combine both low power consumption and high accuracy into a single package. It is ideal for both applications requiring high accuracy and those requiring minimal power consumption. This voltage reference is capable of sourcing a maximum 5mA of current and has an output voltage accuracy of ±0.5%. The LM4051AEM3X-ADJ/NOPB offers adjustable output voltage between 3V and 15V and fixed voltage outputs at 5V and 28V with state of the art accuracy.

Applications

The LM4051AEM3X-ADJ/NOPB provides a reliable, accurate, and low power solution for various industrial, automotive, and consumer applications such as smartphones and IoT devices, where ultra-low power operation is required. It is also suitable for many general purpose voltage references, like for analog-to-digital converter (ADC) and digital-to-analog converter (DAC) reference voltages for systems with high dynamic range requirements.

The LM4051AEM3X-ADJ/NOPB is also used in various consumer and automotive applications where accurate voltage reference and low quiescent current are critical. These applications include power management, portable audio devices, motor control systems and automotive applications such as battery management and in-vehicle infotainment (IVI) systems. The LM4051AEM3X-ADJ/NOPB is capable of powering a wide variety of load currents, making it especially well suited for battery-powered devices such as blood pressure monitors and glucose monitors.

Working Principle

The LM4051AEM3X-ADJ/NOPB is a CMOS shunt voltage reference. A shunt voltage reference is a device that provides a stable output voltage at a given input voltage with low power consumption. The LM4051AEM3X-ADJ/NOPB senses the input voltage and provides a reference voltage at its output by means of a voltage divider network. The output voltage of the LM4051AEM3X-ADJ/NOPB is set by changing the ratio of the two resistors connected externally to the device. By adding a fixed voltage reference and some logic, the current limiter circuit can be implemented and controlled by the voltage reference\'s output voltage.

The LM4051AEM3X-ADJ/NOPB is designed to consume very little power and provide a high level of accuracy. It also features a wide input voltage range, up to 20V, for reliable operation over a wide range of input supply voltages. The LM4051AEM3X-ADJ/NOPB offers temperature coefficient of its output voltage from -20 ppm/°C to +50 ppm/°C. This allows for improved accuracy over temperature variations than standard voltage references, making it ideal for many sensitive applications.

Conclusion

The LM4051AEM3X-ADJ/NOPB is an adjustable and fixed shunt voltage reference module that offers high accuracy, low power consumption, and wide input voltage range. It is ideal for a variety of applications, including power management, automotive, medical, and industrial applications. The LM4051AEM3X-ADJ/NOPB provides an adjustable output voltage between 3V and 15V and fixed output voltages at 5V and 28V with excellent accuracy. Additionally, the device has a wide temperature coefficient range, which allows for improved accuracy over temperature variations.

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