nth-order multi-bit Sigma Delta ADC using SAR quantiser

作者：Kim K S^*; Kim J; Cho S H

来源：Electronics Letters, 2010, 46(19): 1315-1316.

DOI：10.1049/el.2010.1554

An nth-order multi-bit delta-sigma (Sigma Delta) analogue-to-digital converter (ADC) using a synthetic aperture radar (SAR) quantiser is proposed. By exploiting the residue voltage of a multi-bit SAR ADC, the proposed ADC performs as an nth-order noise shaping converter with only one opamp and removes the need for a feedback multi-bit DAC. In addition, the proposed architecture is very reconfigurable and can be implemented as a bandpass ADC.

• 出版日期2010-9-16