A feed-forward Common-Mode (CM) charge control circuit for a high-speed Charge-Domain (CD) pipelined Analog-to-Digital Converter (ADC) is presented herein. This study aims at solving the problem whereby the precision of CD pipelined ADCs is restricted by the variation in input CM charge, which can compensate for CM charge errors caused by a variation in CM charge input in real time. Based on the feed-forward CM charge control circuit, a 12-bit 250-MS/s CD pipelined ADC is designed and realized using a 1P6M 0.18-
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Open Access
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Tsinghua Science and Technology 2018, 23 (1): 87-94
Published: 15 February 2018
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