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@article{198959,
        author = {V.Jhansi and M.Divya Sree and K.Raghu and N.Shailaja and M.Sharan kumar},
        title = {Design of Bandgap Voltage Reference Circuit},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {11994-11999},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=198959},
        abstract = {A Bandgap Voltage Reference (BGR) circuit is a crucial building block in modern analog and mixed-signal electronic systems. It is designed to generate a stable and precise reference voltage that remains nearly constant despite variations in temperature, supply voltage, and process conditions. This stability is essential for the proper functioning of circuits such as analog-to-digital converters, voltage regulators, and sensor interfaces.
The basic principle of a bandgap reference circuit is to combine two voltage components with opposite temperature characteristics. One component, known as the base-emitter voltage of a bipolar junction transistor (BJT), decreases with an increase in temperature (CTAT – Complementary To Absolute Temperature). The other component, derived from the difference in base-emitter voltages of two transistors operating at different current densities, increases with temperature (PTAT – Proportional To Absolute Temperature). By carefully scaling and adding these two voltages, a temperature-independent reference voltage (approximately 1.2V) is achieved.
The design of a BGR circuit involves selecting appropriate device sizes, biasing conditions, and resistor ratios to ensure accuracy and minimize power consumption. Advanced designs may also include curvature correction techniques to improve performance over a wide temperature range. The circuit is widely implemented in integrated circuits due to its reliability, low cost, and robustness. In conclusion, the bandgap voltage reference circuit plays a vital role in ensuring precision and stability in electronic systems. Its ability to provide a constant reference voltage under varying environmental conditions makes it an indispensable component in modern electronic design.},
        keywords = {},
        month = {April},
        }