Patent ID: 8867186

Claim:
An analog switch circuit, comprising: an analog switch input terminal (In); an analog switch output terminal (Out); an analog switch control terminal (Ctl) that is used to control whether the analog switch input terminal (In) is connected to the analog switch output terminal (Out); a first transistor of a first polarity (P 1 ) including a first current path terminal (drain) connected to the analog switch input terminal (In), a second current path terminal (source) connected to the analog switch output terminal (Out), and a control terminal (gate); and a switch controller ( 104 ) including a first controller input ( 103 ) connected to the analog switch control terminal (Ctl), a first controller output ( 106 ) connected to the control terminal (gate) of the first transistor of the first polarity (P 1 ), and an override input ( 108 ) connected to the analog switch input terminal (In); wherein the switch controller ( 104 ) also includes a second transistor of the first polarity (P 2 ) including a first current path terminal (drain) connected to the first current path terminal (drain) of the first transistor of the first polarity (P 1 ), a second current path terminal (source) connected to the control terminal (gate) of the first transistor of the first polarity (P 1 ), and a control terminal (gate) connected to a first voltage rail (Vdd).