Title :
Power saving technique for MOS differential amplifiers
Author :
Takenaka, Kyoichi ; Wada, Kazuyuki ; Takagi, Shigetaka ; Fujii, Nobuo
Author_Institution :
Toshiba Corp., Tokyo, Japan
Abstract :
Class AB differential amplifiers are proposed. Class AB operation for differential amplifiers is realized by using a minimum voltage selecting circuit and an amplifier. An almost minimum tail current value is provided to a differential amplifier to reduce extra power dissipation. The simulation results show that the static power consumption of Wang´s OTA [1990] using the proposed method can be reduced from 244 μW to 46 μW
Keywords :
MOS analogue integrated circuits; differential amplifiers; low-power electronics; operational amplifiers; 46 muW; Class AB differential amplifiers; MOS differential amplifiers; OTA; minimum voltage selecting circuit; power dissipation; static power consumption; tail current value; Adaptive control; Circuit simulation; Differential amplifiers; High power amplifiers; MOSFET circuits; Operational amplifiers; Power amplifiers; Power dissipation; Tail; Threshold voltage;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.857401
