Title :
Multi-step A/D converters with time-multiplexed comparators
Author :
Ahmed, Rana Ejaz
Author_Institution :
Dept. of Electr. Eng., Duke Univ., Durham, NC, USA
Abstract :
A novel design technique for multistep A/D (analog-to-digital) converters is presented. The technique involves time-multiplexing of the comparators using multiphase nonoverlapping clocks. The basic idea of the design scheme is to compare the sampled analog voltage source at each clock phase. The technique also allows performance tradeoffs between the speed of conversion and the number of comparators used in the system. Some examples illustrating the concept are presented
Keywords :
analogue-digital conversion; comparators (circuits); network synthesis; time division multiplexing; conversion speed; design technique; multiphase nonoverlapping clocks; multistep A/D converters; sampled analog voltage source; time-multiplexed comparators; Circuits; Clocks; Delay effects; Delta-sigma modulation; Hardware; Instruments; Signal processing; Signal processing algorithms; Switches; Voltage;
Conference_Titel :
Southeastcon '91., IEEE Proceedings of
Conference_Location :
Williamsburg, VA
Print_ISBN :
0-7803-0033-5
DOI :
10.1109/SECON.1991.147781
