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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/32294

Title: A Low-power Pipeline ADC with Front-end Capacitor-sharing
Authors: Zhang, Guangzhao
Advisor: Johns, David A.
Department: Electrical and Computer Engineering
Keywords: pipeline ADC
20 MS/s
front-end capacitor-sharing
Issue Date: 26-Mar-2012
Abstract: This thesis presents the design and experimental results of a low-power pipeline ADC that applies front-end capacitor-sharing. The ADC operates at 20 MS/s, resolves 1.5 bits/stage, and is implemented in IBM 0.13um technology. The purpose of the technique is to reduce power consumption in the front-end S/H. This work is a proof-of-concept and it concentrates on the front-end design. A comparison is conducted between a capacitor-sharing ADC and a regular ADC and as a result, the technique reduces the power consumption in the front-end S/H by 39%. At an input frequency of 9.53 MHz and a sampling rate of 20 MS/s, the fabricated capacitor-sharing ADC consumes 4.7 mW at 1.2 V, and it achieves an ENOB of 8.5 bits and a FOM of 0.68 pJ/step. It has an ENOB as high as 8.67 bits at 0.4 MS/s and a FOM as low as 0.6 pJ/step when sub-sampling at 20 MS/s.
URI: http://hdl.handle.net/1807/32294
Appears in Collections:Master

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