Design of second-order sub-bandgap mixed-mode voltage reference circuit for low voltage applications

Author

Paul, Rajarshi ; Patra, Amit ; Baranwal, Shailendra ; Dash, Kaushik

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Kharagpur, India

fYear

2005

fDate

3-7 Jan. 2005

Firstpage

307

Lastpage

312

Abstract

This paper presents a second-order BiCMOS sub-bandgap voltage reference circuit for temperature range of -40 to 120 °C. The sub-bandgap voltage is obtained through a new mixed-mode topology, which has the added advantage for obtaining high precision second-order temperature compensation. The circuit is designed in 0.5 μm BiCMOS process. The reference voltage obtained is 475.2 mV at room temperature and has a temperature coefficient of less than 15 ppm/°C. The proposed circuit finds application in low voltage power management circuits.

Keywords

BiCMOS integrated circuits; integrated circuit design; low-power electronics; mixed analogue-digital integrated circuits; reference circuits; -40 to 120 C; 0.5 micron; 475.2 mV; BiCMOS process; low voltage power management circuits; mixed-mode topology; reference voltage; second-order temperature compensation; second-order voltage reference circuit; sub-bandgap mixed-mode voltage reference circuit; Automotive engineering; BiCMOS integrated circuits; Circuit topology; Energy management; Low voltage; Photonic band gap; Resistors; Temperature dependence; Temperature distribution; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Design, 2005. 18th International Conference on

ISSN

1063-9667

Print_ISBN

0-7695-2264-5

Type

conf

DOI

10.1109/ICVD.2005.76

Filename

1383293