Abstract
In this paper we propose an operational transconductance amplifier (OTA) with DC gain greater than 80 dB, improved frequency response and wide linear dynamic input range. Also, we propose a novel common mode feedback circuit, necessary for balanced filter common mode voltage stabilization. An elliptic low-pass filter simulated using this OTA exhibits a THD less than 1% while varying its cutoff frequency from 8 MHz to 12 MHz for a 0.8 V/sub pp/ differential input and /spl plusmn/2.5 V power supply.
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