AD680JR

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Peripheral management integrated circuits (PMICs) are special types of integrated circuits (ICs), which provide dedicated on-chip functions to support the general purpose processor’s core activities. The AD680JR voltage reference is one such device, designed for monitoring and controlling multiple voltage levels within a variety of applications.

The AD680JR is a precision temperature-compensated zener reference operating with a low voltage of 1.25 V to 2.90 V. The device is stable over full temperature and voltage range, making it suitable for use in a wide range of applications. The AD680JR is designed to deliver a precise output voltage with low noise and high precision over a specified temperature range. It is also designed to operate in wide voltage input range from 3 V to 21 V.

The application field of the AD680JR consists of a broad range of voltage references and voltage dividers, such as in power converters, consumer and automotive electronics, motor control systems, industrial control systems, and medical instrumentation. It is commonly used in low power monitoring and testing circuits, linear and industrial regulators, isolated DC/DC converters, motor control stages, and in a variety of other applications.

The working principle of the AD680JR is as follows. The device uses an integrated voltage reference, which uses a single-adjustable pin to provide a stable and adjustable output voltage with a wide range of possible output values. The reference voltage is derived from a bandgap reference to provide a high degree of accuracy. The device also contains two series pass transistors and two zener diodes connected in parallel to form a voltage divider. This voltage divider is used to set the output voltage, which is then compared to the reference voltage by the voltage comparator. If the output voltage is higher than the reference voltage, the output transistor is cut off, and if the output voltage is lower than the reference voltage, then the output transistor is on, resulting in a constant output voltage.

In addition, the AD680JR also features a wide bandwidth and reference voltage accuracy, as well as a low temperature coefficient and low voltage noise. The device also features tight initial accuracy and good long-term stability. Moreover, it has built-in protection features, such as temperature protection and overvoltage protection, that help it provide reliable performance even in harsh environmental conditions.

Overall, the AD680JR is a precision temperature-compensated zener reference that provides a wide range of applications in the field of voltage reference and voltage dividers. It is designed to provide reliable performance over a wide temperature range, and contains built-in protection features to ensure its robustness. The device is widely used in power converters, consumer and automotive electronics, motor control systems, industrial control systems, and medical instrumentation, and is a popular choice for low power monitoring and testing circuits and linear and industrial regulators.

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