Title :
A bulk-controlled temperature and power supply independent CMOS voltage reference
Author :
Testa, L. ; Lapuyade, H. ; Cimino, M. ; Deval, Y. ; Carbonero, J.L. ; Begueret, J.B.
Author_Institution :
IMS Lab., Bordeaux
Abstract :
A temperature and supply voltage independent voltage reference is presented. The design is carried out using the STM 65 nm CMOS process. An analytical study is carried out to show the feasibility to adjust the temperature independent output voltage controlling the biasing of the bulk of one transistor. A feedback is introduced in order to do so. Post-layout simulations confirm the analytical results. The circuit works with a 0.9 V supply voltage and a total power consumption of 27 muW. A temperature coefficient as low as 9 ppm in the temperature range [-50degC;+200degC] is obtained when the bulk is connected to the ground. The output voltage variation for a supply voltage sweep between 0.9 V and 1.25 V is 8.6 mV.
Keywords :
CMOS integrated circuits; reference circuits; CMOS process; CMOS voltage reference; post-layout simulations; power 27 muW; power consumption; reference circuits; size 65 nm; temperature coefficient; temperature independent output voltage; voltage 0.9 V; voltage 1.25 V; voltage 8.6 mV; Analytical models; CMOS process; Circuit simulation; Energy consumption; Feedback; Land surface temperature; Power supplies; Temperature control; Temperature distribution; Voltage control;
Conference_Titel :
Circuits and Systems and TAISA Conference, 2008. NEWCAS-TAISA 2008. 2008 Joint 6th International IEEE Northeast Workshop on
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4244-2331-6
Electronic_ISBN :
978-1-4244-2332-3
DOI :
10.1109/NEWCAS.2008.4606333
