A Sub-1ppm/°C high-order curvature-compensated bandgap reference

Author

Li, Yan ; Wu, Jin ; Huang, Zhiqi ; Gao, Zongli

Author_Institution

Inst. of Integrated Circuit, Southeast Univ., Nanjing

fYear

2008

fDate

Nov. 30 2008-Dec. 3 2008

Firstpage

1204

Lastpage

1207

Abstract

Based on the principle of piecewise compensation, a modified high-order compensation technique with adaptive feedback control scheme for bandgap reference is proposed. This method focuses on forming multiple local extrema of the curve of reference voltage instead of single valley or peak in the entire operating temperature range, which significantly improves the temperature independence. The circuitry is simulated in CSMC 0.6 mum CMOS process, and it has a temperature coefficient in the -55degC to 105degC range of 0.46ppm/degC (average) with power supply current lower than 0.2 muA.

Keywords

CMOS integrated circuits; adaptive control; circuit simulation; compensation; feedback; piecewise linear techniques; reference circuits; CMOS process; CSMC; adaptive feedback control scheme; circuit simulation; high-order compensation technique; high-order curvature-compensated bandgap reference; multiple local extrema; operating temperature range; piecewise compensation; power supply current; reference voltage; single valley; temperature coefficient; Adaptive control; CMOS process; Circuit simulation; Current supplies; Feedback control; Photonic band gap; Power supplies; Programmable control; Temperature distribution; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2008. APCCAS 2008. IEEE Asia Pacific Conference on

Conference_Location

Macao

Print_ISBN

978-1-4244-2341-5

Electronic_ISBN

978-1-4244-2342-2

Type

conf

DOI

10.1109/APCCAS.2008.4746242

Filename

4746242