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摘要
This brief proposes a fully differential track and hold circuit using a new dc offset compensation scheme. It stores an amplified version of the offset during the hold phase, which is used in attenuated fashion during the track phase to compensate offset. This scheme is less sensitive to charge injection and other errors than conventional offset compensation schemes. Experimental results of a test chip in 0.18-mu m CMOS technology verify the proposed scheme.
- 出版日期2018-4
