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《Microelectronics》 2016-01
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Improvement of the Control Circuit for SAR ADC

ZHANG Chuang;NI Yabo;XU Daiguo;HU Gangyi;CHEN Xiaer;FAN Yuxiao;University of Chongqing;Science and Technology on Analog Integrated Circuit Laboratory;Sichuan Institute of Solid-State Circuits,China Electronics Technology Group Corp.;Chongqing University of Posts and Telecommunications;  
The successive approximation ADC is mainly composed of DAC,the comparator and logic control module.In the traditional control circuit structure,the output signal of comparator is shifted by a D flip-flop,and registered by another D flip-flop.So the delay time of one bit is about 2 Dt(the delay of one D flip-flip).The proposed control circuit only consumed Dt and Dand(the delay of one "and"gate),because of the difference of triggered methods.The simulation results showed that the improved structure achieved 28%reduction of delay time compared with the traditional structure.
【CateGory Index】: TN792
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 XU Daiguo;CHEN Guangbing;LIU Tao;Sichuan Institute of Solid-State Circuits,China Electronics Technology Group Corporation;Science and Technology on Analog Integrated Circuit Laboratory;;Design of a Low Noise SAR ADC Based on Capacitor Match Algorithm[J];Microelectronics;2014-05
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