CAPACITOR SUBSTITUTION IC FOR DC INTERRUPTION

摘要

The integrated circuit is substituted for a capacitor to eliminate the DC voltage difference produced between two circuits having different voltages. A resistor (Rx) is connected between an input buffer (10) and a voltage buffer (20) for attenuating the AC component of an input signal. The output signal of the voltage buffer connects to one input terminal of a transconductance amplifier (30). An output amplifier (40) and a current amplifier (50) amplifies the output of the transconductance amplifier. The output of the current amplifier connect to one input terminal of the input buffer through a feedback capacitor (C) and one input terminal of the transconductance amplifier through a feedback buffer (60).