Patent ID: 7834665

Claim:
A track-and-hold circuit comprising: a tracking switch electrically connected to at least one charge compensation device, the tracking switch for switching, in response to a first signal, between a track phase of the track-and-hold circuit and a hold phase of the track-and-hold circuit; a selector switch connected to at least one charge compensation device, the selector switch for switching the at least one charge compensation device between a state of switched into the track-and-hold circuit and a state of switched out of the track-and-hold circuit; wherein when the at least one charge compensation device is in the state of switched into the track-and-hold circuit, the at least one charge compensation device is able to receive a second signal causing it to absorb excess charge emitted by the tracking switch; and wherein when the at least one charge compensation device is in the state of switched out of the track-and-hold circuit, the at least one charge compensation device is unable to receive the second signal.