Design of low-voltage bandgap reference using transimpedance amplifier

Author

Jiang, Yueming ; Lee, Edward K F

Author_Institution

Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA

Volume

47

Issue

6

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

552

Lastpage

555

Abstract

The minimum supply voltage for implementing a typical bandgap reference is usually over 1.8 V. This minimum is mainly due to the limited input common-mode range of the opamp used in the bandgap reference. In this work, a low-voltage bandgap reference using a transimpedance amplifier that does not have this limitation is proposed and some of the design considerations for the proposed technique are briefly discussed. Based on this technique, a 1.2-V bandgap reference was implemented in a 1.2-μm CMOS process (V_TN≈0.53 V and V_TP≈-0.91 V) with bipolar option. The variations of the output voltage over temperature (0°C⩽T⩽100°C) were measured to be less than ±1%

Keywords

CMOS analogue integrated circuits; differential amplifiers; integrated circuit design; low-power electronics; reference circuits; 0 to 100 C; 1.2 V; 1.2 micron; CMOS proces; LV bandgap reference design; low-voltage bandgap reference; transimpedance amplifier; Analog circuits; Analog integrated circuits; CMOS process; Digital integrated circuits; Dynamic voltage scaling; Integrated circuit measurements; Low voltage; Photonic band gap; Temperature; Threshold voltage;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.847072

Filename

847072