AD680ANZ

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AD680ANZ is a precision voltage reference integrated circuit from Analog Devices, suitable for use in a wide range of commercial applications. It is a PMIC (Power Management IC) - Voltage Reference, and is designed to provide consistent voltage levels at the required operating point while consuming minimal power. This makes the AD680ANZ ideal for applications such as microphones and other audio-related circuitry, as well as a variety of embedded microcontrollers. As part of the Analog Devices\' low power family, the AD680ANZ is one of the most energy efficient references available.

The AD680ANZ features a wide input voltage range (2.7V to 5.5V), high accuracy (0.05%), low power (1.4mW), and fast line and load regulation. It also has a 5-bit D/A output for convenient digital operation. The device is offered in a small SOT23-5 package and is designed for operation from -40°C to +85°C. The AD680ANZ is offered in two versions, one standard and one with an improved temperature coefficient.

The working principle of the AD680ANZ is based on a band-gap reference circuit. This circuit utilizes a set of transistors that act as a voltage source, stabilized using an active current source. This voltage source is then regulated by the output stage, which is based on a BJT and junction diode, to maintain the reference regardless of external conditions and process variations. The output stage is also insulated from the temperature coefficients of the voltage source, which provides the extremely good accuracy and stability.

The AD680ANZ is designed to be used in best-in-class systems requiring precision, low noise, and low power. Its large range, low operating current, and fast line/load regulation make it ideal for applications such as small cell phones, tablet computers, and audio and motor control circuitry. It is also suitable for a wide range of industrial and consumer applications, such as medical systems, lighting control and HVAC, as well as automotive, power supplies, and other industrial control systems.

The AD680ANZ provides a clean and accurate reference output, while consuming a minimum of power and pin count. With its low temperature coefficient and high accuracy, it provides a wide range of reference requirements that can easily be met. Its small size and low cost make it an ideal choice for both commercial and industrial applications.

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