A Sub-1V High Precision CMOS Bandgap Reference

Qian Neng Zhou; Rong Xue; Hong Juan Li; Jin Zhao Lin; Yun Song Li; Yu Pang; Qi Li; Guo Quan Li; Lu Deng

doi:10.4028/www.scientific.net/AMM.427-429.1097

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 427-429A Sub-1V High Precision CMOS Bandgap Reference

A Sub-1V High Precision CMOS Bandgap Reference

Abstract:

In this paper, a low temperature coefficient bandgap voltage (BGR) is designed for A/D converter by adopting piecewise-linear compensation technique. The designed BGR is analyzed and simulated in SMIC 0.18μm CMOS process. Simulation results show that the PSRR of the designed BGR achieves-72.51dB, -72.49dB, and-70.58dB at 10Hz, 100Hz and 1kHz respectively. The designed BGR achieve the temperature coefficient of 1.57 ppm/°C when temperature is in the range from-35°C to 125°C. When power supply voltage V_DD changes from 1V to 7V, the deviation of the designed BGR output voltage V_REF is only 4.465μV.

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Periodical:

Applied Mechanics and Materials (Volumes 427-429)

Pages:

1097-1100

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.427-429.1097

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Online since:

September 2013

Authors:

Qian Neng Zhou*, Rong Xue, Hong Juan Li, Jin Zhao Lin, Yun Song Li, Yu Pang, Qi Li, Guo Quan Li, Lu Deng

Keywords:

A/D Converter, Bandgap Voltage Reference, Piecewise-Linear Compensation

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