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CMOS Bandgap Reference Source Circuit with Low Flicker Noises

机译:低闪烁噪声的CMOS带隙基准源电路

摘要

The present abstract discloses a CMOS bandgap reference source circuit, comprising a startup circuit, a power-off control circuit, a reference voltage generating circuit and an operational amplifier. The positive and a negative input terminal of the operational amplifier both consist of two same field effect transistors and both are provided with an input controlled switch; by doing so, two field effect transistors in the positive terminal and two field effect transistors in the negative terminal work alternately between their strong inversion and cut-off region so as to drastically reduce the noises of the reference circuit, which results originally from the flicker noises of two input transistors of the operational amplifier.
机译:本发明公开了一种CMOS带隙基准源电路,包括启动电路,断电控制电路,基准电压产生电路和运算放大器。运算放大器的正,负输入端子均由两个相同的场效应晶体管组成,并且均设有输入控制开关。通过这样做,正极端子中的两个场效应晶体管和负极端子中的两个场效应晶体管在它们的强反相和截止区域之间交替工作,从而大大降低了基准电路的噪声,这最初是由闪烁引起的运算放大器的两个输入晶体管的噪声。

著录项

  • 公开/公告号US2011043184A1

    专利类型

  • 公开/公告日2011-02-24

    原文格式PDF

  • 申请/专利权人 GUOJUN ZHU;

    申请/专利号US20100831147

  • 发明设计人 GUOJUN ZHU;

    申请日2010-07-06

  • 分类号G05F3/16;

  • 国家 US

  • 入库时间 2022-08-21 18:13:50

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