Operational Transconductance Amplifier for Highly Linear Application
نویسندگان
چکیده
–This paper presents a highly linear Operational Transconductance Amplifier (OTA) that combines two linearization techniques, one with adaptive biasing of differential pairs and second with resistive source degeneration. The Operational Transconductance Amplifier has ±0.9v power supply. Operational Transconductance Amplifier has been simulated with TANNER 0.18μm CMOS technology in Tspice. The simulated third order harmonic distortion (HD3) with applying a 300mvP-P differential input, remains below -60dB at 3MHz frequency which gives coefficient of correlation(R) 0.9892. Keywords–– Operational Transconductance Amplifier (OTA); linearity; adaptive bias circuit; source degeneration.
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