Title :
Compact 0.7-V CMOS voltage/current reference with 54/29-ppm/°C temperature coefficient
Author :
Park, Yoon-Suk ; Kim, Hyoung-Rae ; Oh, Jae-Hyuk ; Choi, Yoon-Kyung ; Kong, Bai-Sun
Author_Institution :
Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea
Abstract :
In this paper, new low-voltage low-TC voltage/current reference is presented. The proposed reference consists of a PTAT current source, a low-voltage bandgap reference, and a current replication circuit. According to evaluation results using a 0.18-¿m CMOS process, the proposed reference exhibiting 512-mV output voltage and 0.94-¿A output current achieves a minimum supply voltage of 0.7 V. The proposed voltage/current reference achieves temperature coefficients of 54 ppm/°C and 29 ppm/°C with respect to output voltage and current, respectively. This voltage/current reference consumes an overall current of 7.6 ¿A, and occupies a silicon area of 0.02 mm2.
Keywords :
CMOS analogue integrated circuits; constant current sources; elemental semiconductors; low-power electronics; reference circuits; silicon; CMOS current reference; CMOS voltage reference; PTAT current source; Si; current 0.94 muA; current 7.6 muA; current replication circuit; low-voltage bandgap reference; low-voltage current reference; low-voltage voltage reference; size 0.18 mum; temperature coefficients; voltage 0.7 V; voltage 512 mV; CMOS analog integrated circuits; CMOS process; CMOS technology; Design engineering; Dynamic voltage scaling; Large scale integration; MOSFETs; Photonic band gap; Temperature; Threshold voltage; CMOS analog circuit; constant current; current reference; low voltage; temperature compensation;
Conference_Titel :
SoC Design Conference (ISOCC), 2009 International
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5034-3
Electronic_ISBN :
978-1-4244-5035-0
DOI :
10.1109/SOCDC.2009.5423852
