韦崇敏, 宋树祥, 蒋品群, 蔡超波, 吕芸芸, 陈佳佳. 一种高PSRR高精度多阶电流补偿带隙基准源[J]. 微电子学与计算机, 2021, 38(5): 60-64, 72.
引用本文: 韦崇敏, 宋树祥, 蒋品群, 蔡超波, 吕芸芸, 陈佳佳. 一种高PSRR高精度多阶电流补偿带隙基准源[J]. 微电子学与计算机, 2021, 38(5): 60-64, 72.
WEI Chong-min, SONG Shu-xiang, JIANG Pin-qun, CAI Chao-bo, LYU Yun-yun, CHEN Jia-jia. A high-PSRR high-precision multi-order current compensation bandgap reference[J]. Microelectronics & Computer, 2021, 38(5): 60-64, 72.
Citation: WEI Chong-min, SONG Shu-xiang, JIANG Pin-qun, CAI Chao-bo, LYU Yun-yun, CHEN Jia-jia. A high-PSRR high-precision multi-order current compensation bandgap reference[J]. Microelectronics & Computer, 2021, 38(5): 60-64, 72.

一种高PSRR高精度多阶电流补偿带隙基准源

A high-PSRR high-precision multi-order current compensation bandgap reference

  • 摘要: 设计了一种高PSRR高精度多阶电流补偿带隙基准源电路.采用改进威尔逊自偏置电路与放大器结合的方法来获取高PSRR;采用4阶精确补偿电流来补偿高温段和低温段基准电压的曲率.基于0.13 μm工艺进行设计,仿真结果表明:在3.3 V电源电压及温度从-100 ℃到140 ℃的情况下,带隙基准电压的温漂系数为1.68 ppm/℃,电源电压抑制比为90.4 dB。

     

    Abstract: A high-precision multi-order current compensation bandgap reference circuit with high PSRR is designed. The improved Wilson self-bias circuit combined with the amplifier is used to obtain high PSRR. The curvature of reference voltage in high temperature and low temperature section is compensated by 4 order precise compensation current. Based on 0.13 μm process, thereference circuitisdesignedandthe simulation results show that the temperature drift coefficient of the band-gap reference voltage is 1.68ppm/oC and the PSRR is 90.4 dB under the condition of 3.3 V supply voltage and temperature from -100℃ to 140 ℃.

     

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