SEMICONDUCTOR INTEGRATED CIRCUITS

Negative voltage bandgap reference with multilevel curvature compensation technique

Xi Liu1, , Qian Liu1, 2, Xiaoshi Jin1, Yongrui Zhao2, 3 and Jong-Ho Lee4

+ Author Affiliations

 Corresponding author: Corresponding author. Email: liu.sut@live.com

PDF

Abstract: A novel high-order curvature compensation negative voltage bandgap reference (NBGR) based on a novel multilevel compensation technique is introduced. Employing an exponential curvature compensation (ECC) term with many high order terms in itself, in a lower temperature range (TR) and a multilevel curvature compensation (MLCC) term in a higher TR, a flattened and better effect of curvature compensation over the TR of 165 ℃ (-40 to 125 ℃ ) is realised. The MLCC circuit adds two convex curves by using two sub-threshold operated NMOS. The proposed NBGR implemented in the Central Semiconductor Manufacturing Corporation (CSMC) 0.5 μm BCD technology demonstrates an accurate voltage of -1.183 V with a temperature coefficient (TC) as low as 2.45 ppm/℃ over the TR of 165 ℃ at a -5.0 V power supply; the line regulation is 3 mV/V from a -5 to -2 V supply voltage. The active area of the presented NBGR is 370 × 180 μm2.

Key words: negative voltage bandgap referenceECCmultilevel curvature-compensationTCline regulation



[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
Fig. 1.  The conventional BGR circuit

Fig. 2.  (a) Proposed negative voltage BGR with ECC structure. (b) ECC corrected principle.

Fig. 3.  (Color online) (a) MLCC corrected principle. (b) Proposed NBGR circuit with ECC and MLCC.

Fig. 4.  (Color online) Currents of Q4,N10 and N6 temperature behavior

Fig. 5.  (Color online) Simulated currents $I_{\rm N1}$ and ${k_{1}I}_{\mathrm{N1}}$ against temperature. (a) Adjusting the gate width of transistor N6; (b) adjusting the impedance of resistance $R_6$; (c) adjusting current mirroring factor $k_1.$

Fig. 6.  (Color online) Simulated temperature dependence of NBGR

Fig. 7.  (Color online) Line regulation of the proposed NBGR

Fig. 8.  (Color online) (a) layout and (b) chip photo of this work.

Fig. 9.  Experimental result of TC.

Fig. 10.  (Color online) Experimental result of line regulation.

Fig. 11.  Experimental result of PSRR.

Table 1.   Comparison among the BGRs

DownLoad: CSV
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
  • Search

    Advanced Search >>

    GET CITATION

    shu

    Export: BibTex EndNote

    Article Metrics

    Article views: 3027 Times PDF downloads: 42 Times Cited by: 0 Times

    History

    Received: 09 September 2015 Revised: Online: Published: 01 May 2016

    Catalog

      Email This Article

      User name:
      Email:*请输入正确邮箱
      Code:*验证码错误
      Xi Liu, Qian Liu, Xiaoshi Jin, Yongrui Zhao, Jong-Ho Lee. Negative voltage bandgap reference with multilevel curvature compensation technique[J]. Journal of Semiconductors, 2016, 37(5): 055008. doi: 10.1088/1674-4926/37/5/055008 X Liu, Q Liu, X S Jin, Y R Zhao,J H Lee. Negative voltage bandgap reference with multilevel curvature compensation technique[J]. J. Semicond., 2016, 37(5): 055008. doi:  10.1088/1674-4926/37/5/055008.Export: BibTex EndNote
      Citation:
      Xi Liu, Qian Liu, Xiaoshi Jin, Yongrui Zhao, Jong-Ho Lee. Negative voltage bandgap reference with multilevel curvature compensation technique[J]. Journal of Semiconductors, 2016, 37(5): 055008. doi: 10.1088/1674-4926/37/5/055008

      X Liu, Q Liu, X S Jin, Y R Zhao,J H Lee. Negative voltage bandgap reference with multilevel curvature compensation technique[J]. J. Semicond., 2016, 37(5): 055008. doi:  10.1088/1674-4926/37/5/055008.
      Export: BibTex EndNote

      Negative voltage bandgap reference with multilevel curvature compensation technique

      doi: 10.1088/1674-4926/37/5/055008
      Funds:

      Project supported by the Fund of Liaoning Province Education Department (No. L2013045).

      More Information
      • Corresponding author: Corresponding author. Email: liu.sut@live.com
      • Received Date: 2015-09-09
      • Accepted Date: 2015-12-11
      • Published Date: 2016-01-25

      Catalog

        /

        DownLoad:  Full-Size Img  PowerPoint
        Return
        Return