AD680JRZ

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The AD680JRZ Voltage Reference is an integrated circuit (IC) that provides a highly stable, low temperature coefficient reference voltage over a wide range of operating current and temperature conditions. It is a non-volatile linear technology used in a variety of power management, precision measurement, and personal electronics applications. The AD680JRZ is available in a variety of lower cost versions that can be configured for use in both AC and DC applications. It is also available in a range of higher performance versions with more precision and a wider temperature range.

Application Field

The AD680JRZ is ideal for power management applications where a wide operating temperature range and high precision is desired. It can be used to regulate and protect a wide range of components, such as reference voltage sources, analog-to-digital converters, digital-to-analog converters, mixers and oscillators, memory, LCDs, and other digital processing systems. It is particularly useful for applications that require precision, stability, and wide temperature performance, such as military and aerospace equipment. The device is also used in DC/DC converters and voltage regulators, providing highly precise, low-noise regulation of output voltage.

The AD680JRZ can also be used in electrical industrial systems as a voltage reference for monitoring, control, and precision measurement. It is used in many types of industrial equipment, such as PID controllers, power supplies, and motor control circuits. It is also used in industrial automation and robotics, providing a precise and accurate voltage reference for closed loop feedback.

The AD680JRZ also provides an excellent, low cost solution for low-end consumer electronics, such as radios, portable music players, digital cameras, and audio/video devices. It is popular in these types of applications due to its high accuracy and low cost.

Working Principle

The AD680JRZ is a linear voltage reference, meaning it produces a constant voltage over a range of operating conditions. It consists of an internal bandgap voltage reference along with several voltage amplifiers. The bandgap reference is a two-terminal device that produces a highly accurate voltage, regardless of variations in temperature or operating current. This voltage is then amplified by an operational amplifier to produce a wide range of voltages corresponding to the required output voltage.

The AD680JRZ is highly temperature stable due to the fact that its bandgap voltage reference is a voltage-to-temperature converter. The device is calibrated over a wide operating temperature range and is able to maintain a precise output voltage over this range. It is also resistant to changes in operating current, meaning it can maintain its output voltage even when the input and output currents differ.

The AD680JRZ is also highly efficient, achieving a maximum efficiency of 95%. This is due to its highly accurate internal voltage reference, which eliminates the need for external voltage references. In addition, the device has an incredibly low quiescent current of only 0.3mA. This low current allows it to operate for extended periods without draining the battery.

The AD680JRZ is also extremely versatile, allowing for a wide range of output voltage ranges. It is available in a standard version with output voltages from 2.5V to 6.0V and an extended version with output voltages from 1.25V to 6.0V. This makes it suitable for a wide range of applications, from low voltage portable devices to high voltage industrial systems. Lastly, it is easy to set up, making it an ideal choice for designers looking for a reliable, accurate, and easy-to-use voltage reference.

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