[1] [1] LIU L X, MU J C, ZHU Z M. A 0.55-V, 28-ppm/℃, 83-nW CMOS sub-BGR with ultralow power curvature compensation ［J］. IEEE Trans Circ & Syst I: Regu Pap, 2018, 65(1):95-106.

[4] [4] DUAN Q Z, ROH J J. A 1.2-V 4.2-ppm/℃ high-order curvature-compensated CMOS bandgap reference ［J］. IEEE Trans Circ & Syst I: Regu Pap, 2015, 62(3): 662-670.

[6] [6] SHRIVASTAVA A, CRAIG K, ROBERTS N E, et al. A 32 nW bandgap reference voltage operational from 0.5 V supply for ultra-low power systems ［C］// IEEE ISSCC. San Francisco, CA, USA. 2015: 1-3.

[13] [13] GROMOV V, ANNEMA A J, KLUIT R, et al. A radiation hard bandgap reference circuit in a standard 0.13 μm CMOS technology ［J］. IEEE Trans Nucl Sci, 2007, 54(6): 2727-2733.