Title :
A high performance class AB CMOS rail to rail voltage follower
Author :
Boonyaporn, Patt ; Kasemsuwan, Varakom
Author_Institution :
Dept. of Electron., King Mongkut´´s Inst. of Technol., Ladkrabang, Thailand
Abstract :
A high performance class AB CMOS rail to rail voltage follower is presented. The circuit is based on the symmetrical class AB voltage follower and can operate under supply voltages of ±1.5 V. The proposed circuit has power dissipation of 2.5 mW under quiescent condition and can drive ±1.2 V to 250 Ω load with a total harmonic distortion of less than 0.6 percent and cut off frequency of 131 MHz. Although simple, the proposed circuit enables the output transistors to drive loads efficiently.
Keywords :
CMOS analogue integrated circuits; harmonic distortion; operational amplifiers; -1.5 to 1.5 V; 131 MHz; 2.5 mW; 250 ohm; CMOS; class AB; cut off frequency; power dissipation; quiescent condition; rail to rail voltage follower; supply voltages; total harmonic distortion; CMOS technology; Circuit stability; Drives; Harmonic distortion; Impedance; Joining processes; MOS devices; MOSFETs; Power dissipation; Voltage;
Conference_Titel :
ASIC, 2002. Proceedings. 2002 IEEE Asia-Pacific Conference on
Print_ISBN :
0-7803-7363-4
DOI :
10.1109/APASIC.2002.1031557
