Two-step continuous-time incremental sigma-delta ADC

A two-step continuous-time (CT) incremental sigma-delta (IΣΔ) ADC, which enhances the performance of conventional CT IΣΔ ADCs, is proposed. By pipelining two second-order CT IΣΔ ADCs, the proposed two-step architecture can achieve high resolution without sacrificing the conversion rate. Compared to other alternatives, the two-step CT IΣΔ ADC exhibits the freedom of adjusting its accuracy and speed...