Title :
±1.5V high performance CMOS rail to rail voltage follower
Author :
Kasemsuwan, Varakorn ; Boonyaporn, P. ; Thanachayanont, Apinunt
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
A ±1.5 V high performance 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 5.2 mW under quiescent condition and can drive ±1.25 V to 250 Ω load with a total harmonic distortion of less than 0.5 percent and cut-off frequency of 237 MHz. Although simple, the proposed circuit enables the output transistors to drive the load efficiently.
Keywords :
CMOS analogue integrated circuits; circuit simulation; harmonic distortion; integrated circuit design; integrated circuit modelling; operational amplifiers; 1.5 V; 237 MHz; 250 ohm; 5.2 mW; circuit power dissipation; circuit supply voltages; cut off frequency; high performance CMOS rail to rail voltage follower; load; output transistors; quiescent conditions; symmetrical class AB voltage follower; total harmonic distortion; CMOS technology; Circuit simulation; Differential amplifiers; Harmonic distortion; Impedance; MOS devices; MOSFETs; Mirrors; Transconductance; Voltage;
Conference_Titel :
Circuits and Systems, 2002. APCCAS '02. 2002 Asia-Pacific Conference on
Print_ISBN :
0-7803-7690-0
DOI :
10.1109/APCCAS.2002.1115287
