Title :
A low voltage CMOS bandgap reference
Author :
Yeong-Tsair Lin ; Chung, Wen-Yaw ; Wu, Dong-Shiu ; Ho-Cheng Lin ; Lin, Ho-Cheng
Author_Institution :
Dept. of Electron. Eng., Chung Yuan Christian Univ., Chung-li, Taiwan
Abstract :
In this paper, a low voltage bandgap reference (LVBR) is proposed and analyzed. An nMOS arrangement folded operational transconductance amplifier (OTA) is developed for the LVBR. From the Hspice simulation results, the proposed LVBR can be operated with sub-1V supply. The LVBR circuit, occupied an area of 0.12 mm2, is design and fabricated in a doubly-poly quadruple-metal 0.35-μm CMOS process. The circuit functions properly with minimum supply voltage of 0.88 V and consumes a power dissipation of 25 μW. The circuit also provides a temperature coefficient of 20 ppm/K over a temperature range from -20 to 100°C.
Keywords :
CMOS analogue integrated circuits; integrated circuit design; low-power electronics; operational amplifiers; reference circuits; -20 to 100 C; 0.35 micron; 0.88 V; 25 muW; CMOS process; LVBR circuit; low voltage bandgap reference; nMOS arrangement; operational transconductance amplifiers; CMOS memory circuits; CMOS process; CMOS technology; Circuit simulation; Low voltage; Operational amplifiers; Photonic band gap; Temperature distribution; Temperature sensors; Transconductance;
Conference_Titel :
IEEE-NEWCAS Conference, 2005. The 3rd International
Print_ISBN :
0-7803-8934-4
DOI :
10.1109/NEWCAS.2005.1496749
