ANALOG SWITCH CIRCUIT

PURPOSE:To reduce a crosstalk noise between nodes of a transistor (TR) for a switch element and a ground noise appearing at both nodes by providing a switch control circuit having a specific function to the circuit. CONSTITUTION:A drain and a source of a switch element use NMOS TR TN are connected between a 1st node 11 and a 2nd node 12. A switch control circuit 10 is made up of switch drive NMOS TRs N1,N2, a pullup PMOS TR P3, a delay element DL, and a 2-input NOR circuit 16. The switch control circuit 10 has a capacitive component required to set a gate capacitance of the switch element TR TN to be a required capacitance. Then a gate potential of the switch element TR TN is controlled in plural timings based on a switch control input Sin inputted to a control input node 14.