J. Semicond. > 2008, Volume 29 > Issue 10 > 1974-1979

PAPERS

A Piecewise Curvature-Corrected CMOS Bandgap Reference with Negative Feedback

Li Jinghu, Wang Yongsheng, Yu Mingyan and Ye Yizheng

+ Author Affiliations

PDF

Abstract: A piecewise curvature-corrected bandgap reference (BGR) with negative feedback is proposed.It features employing a temperature-dependent resistor ratio technique to get a piecewise corrected current,which corrects the nonlinear temperature dependence of the first-order BGR.The piecewise corrected current generator also forms negative feedback to improve the line regulation and power supply rejection (PSR).Measurement results show the proposed BGR achieves a maximum temperature coefficient (TC) of 21.2ppm/℃ without trimming in the temperature range of -50~125℃ and a PSR of -60dB at 2.6V supply voltage.The line regulation is 0.8mV/V in the supply range of 2.6~5.6V.It is successfully implemented in an SMIC 0.35μm 5V n-well digital CMOS process with the effective chip area of 0.04mm2 and power consumption of 0.18mW. The reference is applied in a 3,5V optical receiver trans-impedance amplifier.

Key words: piecewise curvature-correctedbandgap referenceline regulationPSRtemperature coefficient

  • Search

    Advanced Search >>

    Article Metrics

    Article views: 2972 Times PDF downloads: 1009 Times Cited by: 0 Times

    History

    Received: 18 August 2015 Revised: 01 June 2008 Online: Published: 01 October 2008

    Catalog

      Email This Article

      User name:
      Email:*请输入正确邮箱
      Code:*验证码错误
      Li Jinghu, Wang Yongsheng, Yu Mingyan, Ye Yizheng. A Piecewise Curvature-Corrected CMOS Bandgap Reference with Negative Feedback[J]. Journal of Semiconductors, 2008, In Press. Li J H, Wang Y S, Yu M Y, Ye Y Z. A Piecewise Curvature-Corrected CMOS Bandgap Reference with Negative Feedback[J]. J. Semicond., 2008, 29(10): 1974.Export: BibTex EndNote
      Citation:
      Li Jinghu, Wang Yongsheng, Yu Mingyan, Ye Yizheng. A Piecewise Curvature-Corrected CMOS Bandgap Reference with Negative Feedback[J]. Journal of Semiconductors, 2008, In Press.

      Li J H, Wang Y S, Yu M Y, Ye Y Z. A Piecewise Curvature-Corrected CMOS Bandgap Reference with Negative Feedback[J]. J. Semicond., 2008, 29(10): 1974.
      Export: BibTex EndNote

      A Piecewise Curvature-Corrected CMOS Bandgap Reference with Negative Feedback

      • Received Date: 2015-08-18
      • Accepted Date: 2008-03-10
      • Revised Date: 2008-06-01
      • Published Date: 2008-11-11

      Catalog

        /

        DownLoad:  Full-Size Img  PowerPoint
        Return
        Return