VRE202CA

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The VRE202CA is a voltage reference IC in the Power Management IC (PMIC) family of integrated circuits (ICs). It provides stable, low-voltage reference signals for use in various designs that require accurate, low-power reference values. In this article, we will discuss the various application fields and working principles of the VRE202CA.

Application Fields

The VRE202CA can be used in a wide range of applications. It is ideal for use in power system and operational amplifier designs where accuracy and low power consumption are desired. It can also be used in analog and digital circuitry, such as A/D and D/A converters, and in high accuracy test and measurement instruments. Furthermore, the VRE202CA can be used in power supply design applications, such as linear regulators, DC-DC converters, and SMPS, as well as in battery-powered applications.

Working Principle

The VRE202CA consists of an integrated temperature-compensated voltage reference and a voltage output buffer amplifier. The voltage reference circuit produces a stable and repeatable output voltage based on a reference clock signal. The buffer amplifier is used to improve the dynamic range and speed of the response. The output voltage is compared with a preset voltage trimmer and adjusted accordingly, ensuring that the reference voltage is accurate and constant. The VRE202CA provides a reference voltage of 2.5 V with a tolerance of ±20 mV.

In addition to its low-voltage reference signal, the VRE202CA also features an integrated temperature-compensation circuit. This temperature-compensation circuit helps to ensure that the output voltage remains constant over a wide range of temperature variations. The VRE202CA also features a low noise, low distortion power-supply rejection ratio (PSRR) of up to 90 dB.

The VRE202CA also offers good accuracy and high stability even over relatively long periods of time. The VRE202CA can maintain its accuracy for over 1000 hours when working with a load of 1 mA. As with any precision IC, proper care should be taken to ensure that the proper power supply and operating conditions are maintained.

Conclusion

The VRE202CA is a precision voltage reference IC from the Power Management IC (PMIC) family of integrated circuits. It is ideal for use in power system and operational amplifier designs, A/D and D/A converters, high accuracy test and measurement instruments, and power supply design applications. It features an integrated temperature-compensated voltage reference and a voltage output buffer amplifier, providing a stable and repeatable output voltage with an accuracy of ±20 mV. It also offers good accuracy and stability over a wide range of working conditions. An understanding of its application fields and working principles is essential for its proper use in your design.

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