Chin. J. Semicond. > 2007, Volume 28 > Issue 4 > 490-495

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Bandgap Reference Design by Means of Multiple Point Curvature Compensation

Jiang Ta and Yang Huazhong

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Abstract: A new method,namely multiple point curvature compensation (MPCC),is proposed for the design of a bandgap reference,and its design principles,theoretical derivation,and one feasible circuitry implementation are presented.Being different from traditional techniques,this idea focuses on finding multiple temperatures in the whole range at which the first order derivatives of the output reference voltage equal zero.In this way,the curve of the output reference voltage is flattened and a better effect of curvature compensation is achieved.The circuitry is simulated in ST Microelectronics 0.18μm CMOS technology,and the simulated result shows that the average temperature coefficient is only 1ppm/℃ in the range from -40 to 125℃.

Key words: bandgap referencecurvature compensationsub-threshold circuit

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    Received: 18 August 2015 Revised: 18 November 2006 Online: Published: 01 April 2007

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      Jiang Ta, Yang Huazhong. Bandgap Reference Design by Means of Multiple Point Curvature Compensation[J]. Journal of Semiconductors, 2007, 28(4): 490-495. ****Jiang T, Yang H Z. Bandgap Reference Design by Means of Multiple Point Curvature Compensation[J]. Chin. J. Semicond., 2007, 28(4): 490.
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      Jiang Ta, Yang Huazhong. Bandgap Reference Design by Means of Multiple Point Curvature Compensation[J]. Journal of Semiconductors, 2007, 28(4): 490-495. ****
      Jiang T, Yang H Z. Bandgap Reference Design by Means of Multiple Point Curvature Compensation[J]. Chin. J. Semicond., 2007, 28(4): 490.

      Bandgap Reference Design by Means of Multiple Point Curvature Compensation

      • Received Date: 2015-08-18
      • Accepted Date: 2006-10-24
      • Revised Date: 2006-11-18
      • Published Date: 2007-04-09

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