THE TRANSMISSION GATE CIRCUITRY

摘要

Each IGFET of a complementary transmission gate has associated with it a corresponding dummy device of like conductivity type. Each dummy device is operated in a complementary manner to its corresponding transmission gate IGFET to provide cancellation of gating signals that may tend to be coupled via a parasitic capacitance to the conduction paths of the IGFET. The gate electrodes on Ng1 and CPG1 are connected in common to a line and are driven by a clock signal Cl, applied to the line. The gate electrodes of PG1 and CNG1 are connected in common to a second line and are driven by a second clock signal. The signals are complementary to each other.