Title :
Low-voltage, supply independent CMOS bias circuit
Author :
Dong, Zhiwei ; Allen, Phillip E.
Author_Institution :
Electr. & Comput. Eng. Sch., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
Mixed-signal CMOS integrated circuits for future portable systems will have to operate down to supply voltages just exceeding the MOS threshold voltage. A simple CMOS circuit is reported for generating supply-voltage independent bias voltages and currents, down to a minimum supply voltage of 0.68 V (VT+2VDSat). The circuit is compatible with digital processes. Supply interference is rejected by more than 70 dB.
Keywords :
CMOS integrated circuits; circuit simulation; constant current sources; integrated circuit design; low-power electronics; mixed analogue-digital integrated circuits; voltage regulators; 0.68 V; MOS threshold voltage; bias currents; bias voltages; digital process compatible circuit; low-voltage bias circuit; minimum supply voltage; mixed-signal CMOS integrated circuits; supply interference rejection; supply voltage independent bias circuit; CMOS integrated circuits; CMOS technology; Digital systems; Integrated circuit technology; Interference; Low voltage; MOS devices; Negative feedback; Resistors; Threshold voltage;
Conference_Titel :
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on
Print_ISBN :
0-7803-7523-8
DOI :
10.1109/MWSCAS.2002.1187100
