REF1004C-2.5/2K5G4

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PMIC (Power Management Integrated Circuit) Voltage Reference is used as an accurate reference source in order to protect sensitive components and provide an output voltage that can be precisely regulated. The REF1004C-2.5/2K5G4 is a fixed and temperature-compensating voltage reference with temperature-sensing function, designed for the power management of portable instruments and consumer electronic products. It is a low-power, low-cost, low-temperature coefficient, high accuracy, and high-precision device.

The REF1004C-2.5/2K5G4 is specifically designed for battery-operated devices and makes use of an internal low-power op amp, as well as a bandgap reference to control the output voltage. This device is designed to provide a stable and precisely regulated voltage with a temperature coefficient of ±25ppm/°C over a wide temperature range of -40°C to +85°C, which is able to reduce the output voltage drift up to three times better than many other market alternatives.

The application field of the REF1004C-2.5/2K5G4 is mainly in portable battery powered instruments and consumer electronic products, such as smartphones, tablets, digital cameras and camcorders, where a low operating temperature drift, stable and precise voltage references are required to ensure reliable functionality. Additionally, its high accuracy and low power consumption make it ideal for a wide range of industrial, automotive, medical and instrument-level applications.

The working principle underlying the REF1004C-2.5/2K5G4 is based on a unique combination of internal PC- and bandgap-based voltage reference circuit architecture. In essence, what this device does is it utilizes the PC-based voltage reference circuit to build the temperature-compensating output voltage, whereas a bandgap-based architecture provides a stable internal temperature reference. This combination of references enables the device to precisely and accurately compensate for the temperature drift inherent in traditional voltage references.

The REF1004C-2.5/2K5G4 allows for user configured voltage outputs via an external voltage divider and its two external reference pins. This configuration provides users with the possibility to adjust the device’s output voltage without compromising its accuracy and precision. Moreover, the REF1004C-2.5/2K5G4 is designed to remain responsive to changes of environmental parameters, such as load and temperature, making it the ideal choice for battery powered applications.

In conclusion, the REF1004C-2.5/2K5G4 is a low-power, low-cost, low-temperature coefficient and high-precision voltage reference device, offering users a reliable and accurate source of voltage reference. With its bandgap-based and PC-based reference combination, this device is able to remain responsive to changes in temperature and load conditions, thus providing excellent accuracy, precision and temperature drift characteristics. As such, the REF1004C-2.5/2K5G4 is well suited for a wide variety of portable instruments and consumer electronic devices, as well as a number of industrial, automotive, medical and instrument-level applications.

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