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US 8,410,968 B2Granted
Track and hold circuit
AssigneeCrest Semiconductors, Inc.
InventorTracy Johancsik
Life of this patent
Estimating the term…
Abstract
A track and hold circuit includes an input, a first output configured to produce a first output signal, and a second output configured to produce a second output signal while the track and hold circuit is in a first mode. While the track and hold circuit is in a second mode, the second output signal is combined with the first output signal and output on the first output.
Claims20
A track and hold circuit comprising:
- an input;
- a first output configured to produce a first output signal;
- and
- a second output configured to produce a second output signal while said track and hold circuit is in a first mode;
- in which while said track and hold circuit is in a second mode, said second output signal is combined with said first output signal and output on said first output.
2 more elements
A method for sampling and holding a signal, the method comprising:
- providing an input signal to a first output of said track and hold circuit when said track and hold circuit is in a track mode;
- tracking a signal value of said input signal with a storage node, said storage node holding a value of said input signal when said track and hold circuit is switched to a hold mode;
- producing a copy of said stored signal value with a current mirror of said track and hold circuit;
- and
- switching said copy of said stored signal to be added to said signal value applied to said first output when said track and hold circuit is in said hold mode.
2 more elements
An electronic circuit comprising:
- a track and hold circuit configured to:
- provide an input signal to a first output of said track and hold circuit when said track and hold circuit is in a track mode;
- track a signal value of said input signal with a storage node, said storage node holding a value of said input signal when said track and hold circuit is switched to a hold mode;
- produce a copy of said stored signal value with a current mirror of said track and hold circuit;
- and
- switch said copy of said stored signal to be added to said signal value applied to said first output when said track and hold circuit is in said hold mode.
3 more elements
Dependencies are inferred from the claim text.