| Title |
A Bandgap Reference Circuit with Feedback Loop for Decrement of Effects from PVT Variations |
| Authors |
손종현(Jonghyun Sohn) ; 윤홍일(Hongil Yoon) |
| DOI |
https://doi.org/10.5573/ieie.2023.60.2.105 |
| Keywords |
Bandgap reference circuit; Feedback loop; PVT variation |
| Abstract |
In regardless of external variations, circuits must have a constant voltage supplier to lower the effects from variations. Bandgap reference circuit, as known as BGR circuit is one of the example of constant voltage bias circuit. In this paper, we'll propose a BGR circuit with feedback loop for better performance, compared with state-of-the-art circuits. The performance parameters is shown as follows: minimum supply voltag eof 1.19V, temerature coefficient of 8.83ppm/℃, line sensitivity of 0.065%/V, power supply rejection ratio (PSRR) of -66.7dB in 100Hz. The output reference voltage is about 605mV. The proposed circuit will be used in many cases, because it is less affected by process, voltage, and temperature variations. Also, this circuit could operate in higher frequencies, due to enhanced PSRR over 10kHz. |