REF02HP+

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Voltage references, which are also referred to as precision voltage references, are devices used to precisely establish and maintain AC or DC voltage levels. They are often used in power supplies, signal conditioning and control signal chains, temperature regulation applications, load regulation, and anywhere else where a stable, true signal must be maintained. One type of voltage reference that is becoming popular in a wide range of applications is the REF02HP+ –a two-terminal bandgap reference.

The REF02HP+ precision voltage reference is designed with a low temperature coefficient and low noise level, resulting a low total harmonic distortion (THD). It outputs a stable, regulated voltage over a range of temperatures and input voltage conditions, meeting the System Integration requirements of modern systems. It also includes a number of safety features like a thermal shutdown and a latching shutdown for overvoltage protection. The REF02HP+ includes an on-chip linear regulator which works as a high-current buffer. This feature simplifies the power supply design and allows for design optimisations for a wide range of applications.

The REF02HP+ is ideal for use in a variety of applications that require high precision and accuracy in voltage regulation. It is often used in audio-video circuits, data acquisition systems, real-time clock (RTC) applications, temperature monitoring systems, battery control systems, and portable or embedded devices. Its features and performance can be tuned with several external components to optimise the parameters of the voltage reference circuit.

The working principle of the REF02HP+ is based on a two-terminal bandgap reference. It is designed to provide a stable output voltage with a small temperature coefficient and low output impedance. The voltage is generated by the balanced junction with a resistive divider. The output of the resistive divider is then buffered with an on-chip voltage amplifier to supply a current-limited output. The REF02HP+ also includes an on-chip thermal protection circuit that is triggered when the chip temperature exceeds a certain threshold.

The REF02HP+ is a highly accurate and reliable voltage reference, ideal for applications in which precision voltage regulation is required. It uses a low temperature coefficient and low noise level to provide a stable, regulated voltage over a wide range of temperatures and input voltages. It also includes several safety features, such as a thermal shutdown, overvoltage protection and an on-chip linear regulator. Its features and performance can be tuned with several external components to optimise the parameters of the voltage reference circuit, making it highly suitable for many modern systems and applications.

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