Patent ID: 8847629

Claim:
A low leakage switch comprising a first transistor being configured to receive an input voltage at a first side of its channel, a second transistor being configured to receive an input voltage at a first side of its channel and coupled with a second side of its channel to a backgate of the first transistor and a third transistor being configured to receive an input voltage at a first side of its channel and coupled with a second side of its channel to a backgate of the second transistor, wherein the low leakage switch further comprises a pre-sampling transistor and a pre-sampling capacitor and wherein the pre-sampling transistor is coupled with a first side of its channel to an input node, with a second side of its channel to the pre-sampling capacitor, and the first transistor is coupled with the first side of its channel to the second side of the channel of the pre-sampling transistor and to the pre-sampling capacitor; wherein a control gate of the pre-sampling transistor is coupled to receive a first control signal and a control gate of the first transistor is coupled to receive a second control signal; and wherein control gates of the second transistor and the third transistor are coupled to receive the first control signal.