Title :
A 1V Ultra-Low Power High Precision CMOS Voltage Reference
Author :
Ma, Jirong ; Li, Yongming ; Zhang, Chun ; Wang, ZhiHua
Author_Institution :
Tsinghua Univ., Beijing
Abstract :
A 1V ultra-low power high precision voltage reference is designed and implemented with UMC mixed-signal 0.18-mum CMOS technology. A novel low-voltage high-precision current mirror is introduced in the voltage reference in order to reduce temperature coefficient and line regulation. Post simulation results show that the reference voltage and total power dissipation are 406.5 mV and 0.83 muW, respectively. Temperature coefficient of the voltage reference is 18.5 ppm/degC when temperature ranges from -45degC to 90degC, while line regulation is 1%/V when the supply voltage ranges from 1 V to 2.4 V. The circuit layout occupies approximately 106 mum times 81 mum.
Keywords :
CMOS analogue integrated circuits; CMOS digital integrated circuits; current mirrors; integrated circuit layout; low-power electronics; mixed analogue-digital integrated circuits; reference circuits; UMC mixed-signal CMOS technology; circuit layout; current mirror; power 0.83 muW; size 0.18 mum; temperature -45 C to 90 C; ultra low power high precision voltage reference; voltage 1 V; voltage 406.5 mV; CMOS technology; Circuit simulation; Converters; Low voltage; MOSFET circuits; Mirrors; Power dissipation; Power generation; Temperature distribution; Threshold voltage;
Conference_Titel :
Electron Devices and Solid-State Circuits, 2007. EDSSC 2007. IEEE Conference on
Conference_Location :
Tainan
Print_ISBN :
978-1-4244-0637-1
Electronic_ISBN :
978-1-4244-0637-1
DOI :
10.1109/EDSSC.2007.4450258
