A fast and unilateral monolithic switch for analog signals

This correspondence deals with a monolithic switch circuit for voltage-type analog signals. The circuit constitutes a unilateral, impedance buffering changeover switch, which is capable of fast signal switching (10 ns changeover time) and can handle wide-spectrum signals (dc-100 MHz). The switch introduces only a small offset (<1 mV) and causes only small (<50 mV), short lasting (<50 ns) switching spikes.