REF02BP

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REF02BP is a precision voltage reference designed for use in precision data acquisition and Digital-to-Analog-Conversion (DAC) applications. It provides an accurate and stable voltage output at an extremely low power consumption. This device is based on a band-gap reference and includes a temperature-sensing element to compensate for changes in the ambient temperature. The device incorporates a low reference voltage, stable over temperature, as well as excellent accuracy and current consumption. It can be operated either as a fixed or as a adjustable voltage reference.

Application Field

The REF02BP is commonly used in portable electronic devices such as digital cameras, camcorders, mobile phones and personal digital assistants (PDAs). It is also the voltage reference of choice for many digital-to-analog-conversion applications such as data acquisition systems, analog-to-digital-converters, and audio-digital-signal-processing equipment. Additionally, the REF02BP is used in a variety of industrial applications such as motor control, data logging, power supplies, and automation systems.

Working Principle

The REF02BP utilizes a band-gap reference to provide a stable output voltage over a wide range of temperatures and supply voltages. A band gap reference is created by utilizing the thermodynamic properties of a voltage dependent resistor (VDR) to form a voltage divider which is regulated against a stable temperature coefficient of resistance. The VDR that is formed produces a voltage relatively insensitive to changes in ambient temperature. This voltage is then filtered to produce a stable voltage reference output.

The device also features a low operating current which helps reduce overall power consumption. Additionally, the REF02BP includes an adjustable output voltage which is controlled by an external resistor. This allows the user to adjust the output voltage to the desired level within certain specified ranges.

The REF02BP also includes a temperature-sensing element which helps to compensate for changes in the ambient temperature. This allows the device to maintain a stable voltage reference output over a wide range of temperatures. The temperature-sensing element also provides a means to monitor the device’s operating temperature. This can be used to protect against any potential damage due to excessive temperatures.

Conclusion

The REF02BP is an excellent choice for a voltage reference for precision data acquisition and Digital-to-Analog-Conversion applications. With its low power consumption, low reference voltage, stable over temperature, and low operating current, the REF02BP is well-suited for many of today’s portable electronic devices and industrial applications. With its adjustable output voltage and temperature sensing element, the device can provide a stable reference voltage over a wide range of temperatures and supply voltages.

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