Title :
A low-power low-voltage bandgap reference in CMOS
Author :
Sun, Na ; Sobot, Robert
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON, Canada
Abstract :
A low-voltage low-power bandgap voltage reference in 90nm CMOS is designed and simulated. The overall bandgap architecture is optimized to achieve high accuracy temperature and power supply independent voltage reference. It consists of the bandgap core circuit, op-amp, start-up circuit and output stage. The bandgap reference circuit provides reference voltage of 584.7mV ± 0.8mV with 1.2V ± 10% power supply and over -40°C to 125°C temperature ranges simultaneously. The total layout area including dummy structures is 100μm × 85μm.
Keywords :
CMOS integrated circuits; low-power electronics; operational amplifiers; reference circuits; CMOS; bandgap architecture; bandgap core circuit; high accuracy temperature; low-voltage low-power bandgap voltage reference; op-amp; power supply independent voltage reference; size 90 nm; start-up circuit; temperature -40 C to 125 C; voltage 1.2 V; voltage 584.7 mV; CMOS integrated circuits; Photonic band gap; Power supplies; Temperature dependence; Temperature distribution; Transistors; Bandgap Voltage Reference; Low-Power; Low-Voltage; Op-Amp; Output Stage; Start-Up Circuit; analog IC;
Conference_Titel :
Electrical and Computer Engineering (CCECE), 2010 23rd Canadian Conference on
Conference_Location :
Calgary, AB
Print_ISBN :
978-1-4244-5376-4
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2010.5575247
