Differential sampling circuit
AssigneeRealtek Semiconductor Corp.
InventorShih-Hsiung Huang
Life of this patent
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Abstract
A differential sampling circuit is configured to sample a differential circuit. The differential circuit includes a first output and a second output, and the differential sampling circuit includes an amplifier and a switch circuit. The switch circuit includes a capacitor, a pair of sampling switches, and a pair of output switches. One end of the capacitor is coupled to the first output of the differential circuit through one of the pair of sampling switches, and is coupled to a reference terminal through the one of the pair of output switches. The other end of the capacitor is coupled to the second output of the differential circuit through the other of the pair of sampling switches, and is coupled to an input terminal of the amplifier through the other of the pair of output switches.
Claims20
A differential sampling circuit, configured to sample a differential circuit, wherein the differential circuit comprises a first output and a second output, and the differential sampling circuit comprises:
- an amplifier;
- and
- a first switch circuit, comprising a first capacitor, a pair of first sampling switches, and a pair of first output switches, wherein one end of the first capacitor is coupled to the first output of the differential circuit through one of the pair of first sampling switches and is coupled to a first reference terminal through the one of the pair of first output switches, and the other end of the first capacitor is coupled to the second output of the differential circuit through the other of the pair of first sampling switches and is coupled to a first input terminal of the amplifier through the other of the pair of first output switches.
Dependencies are inferred from the claim text.