Title :
A Novel Curvature Compensation Technique for High Precision Voltage Reference
Author :
Liu, Yonggen ; Feng, Yong ; Zeng, Shao Wei ; Luo, Ping ; Zhang, Bo ; Li, Zhaoji
Author_Institution :
IC Design Center, Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
This paper proposed a new curvature compensation approach for a kind of bandgap voltage reference using the temperature characteristics of the current gain beta and the bandgap narrowing factor DeltaEG of emitter of a bipolar transistor. This technique requires no additional circuits for the curvature compensation. This paper designed two bandgap references that the output voltages are 1.207 v and 2.419 v, respectively and the temperature coefficients are 0.73 ppm/degC and 0.65 ppm/degC, respectively. These circuits dissipate about 0.09 mW with a 3-V supply and 0.18 mW with a 5-V supply, respectively
Keywords :
bipolar transistors; compensation; reference circuits; bandgap voltage reference; bipolar transistor; curvature compensation approach; temperature characteristics; Battery charge measurement; Bipolar integrated circuits; Bipolar transistors; Current measurement; Current supplies; Paper technology; Photonic band gap; Power measurement; Temperature dependence; Voltage;
Conference_Titel :
Communications, Circuits and Systems Proceedings, 2006 International Conference on
Conference_Location :
Guilin
Print_ISBN :
0-7803-9584-0
Electronic_ISBN :
0-7803-9585-9
DOI :
10.1109/ICCCAS.2006.285119
