Sampling circuit for ADC
AssigneeIPGoal Microelectronics (SiChuan) Co., Ltd.
InventorBaoding Yang
Life of this patent
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Abstract
A sampling circuit for ADC includes an external input terminal, a sampling circuit and an auxiliary circuit which are connected with the external input terminal, a clock circuit and an external output terminal which are connected with the sampling circuit, and a clock feedthrough circuit connected with the auxiliary circuit, wherein the clock feedthrough circuit is respectively connected with the clock circuit and the external output terminal. The sampling circuit for ADC of the present invention decreases the impact of clock feedthrough on signal sampling, improves linearity of sampling FET, reduces harmonic distortion of the sampling circuit and improves sampling speed thereof, and improves sampling accuracy of the sampling circuit for ADC.
Claims8
A sampling circuit for ADC (Analog-to-Digital Converter), comprising:
- an external input terminal,
- a sampling circuit and an auxiliary circuit which are connected with the external input terminal,
- a clock circuit and an external output terminal which are connected with the sampling circuit, and
- a clock feedthrough circuit connected with the auxiliary circuit, wherein the clock feedthrough circuit is respectively connected with the clock circuit and the external output terminal.
Dependencies are inferred from the claim text.