Title :
A low power and fast wake up circuit
Author :
Chen, Hung-Wei ; Yen, Wen-Cheng
Author_Institution :
Nat. United Univ., Miao-Li, Taiwan
Abstract :
This paper proposes a low power and fast waked up RC-oscillator that includes a POR circuit to detect the statue of the power supply, a const-Gm is used to generate the bias of a ring RC-oscillator and a clock control unit to ensure stable clock frequency output. A 1.2 MHz RC-oscillator has been designed and simulated. The test chip is fabricated in a 0.18 μm 1P3M standard CMOS logical process. The chip area is 130 μm×240 μm. Measurement results show the RC-oscillator with 3 μs waked up time and 27 μW power consumption for the 1.5 V power supply. Thus, the RC-oscillator is suitable as embedded wake-up circuit for the low power portable system.
Keywords :
CMOS logic circuits; RC circuits; integrated circuit design; low-power electronics; power consumption; 0.18 micron; 1.5 V; 27 muW; 3 mus; CMOS logical process; RC oscillator; clock control unit; embedded wake up circuit; fast wake up circuit; low power portable system; low power wake up circuit; power consumption; power supply statue detection; stable clock frequency; CMOS process; Circuit simulation; Circuit testing; Clocks; Frequency; Logic testing; Power generation; Power measurement; Power supplies; Semiconductor device measurement;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1329266
