A high performance class AB CMOS rail to rail voltage follower

P. Boonyaporn1, V. Kasemsuwan1
1Department of Electronics, Faculty of Engineering, King Mongkut''s Institute of Technology Ladkrabang, Thailand

Tóm tắt

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 /spl plusmn/1.5 V. The proposed circuit has power dissipation of 2.5 mW under quiescent condition and can drive /spl plusmn/1.2 V to 250 /spl Omega/ 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.

Từ khóa

#Voltage #Power dissipation #MOSFETs #CMOS technology #Impedance #Drives #Harmonic distortion #Circuit stability #Joining processes #MOS devices

Tài liệu tham khảo

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