A 77dB SNDR 12.5MHz Bandwidth 0 1 MASH ΣΔ ADC Based on the Pipelined SAR Structu

This paper presents a wide-band and energy-efficient 0-1 MASH ΣΔ ADC which is realized based on the pipelined-SAR structure. Composed by a 6b SAR ADC in the 1st-stage and a 5b SAR ADC in the 2nd-stage, with alternate loading capacitors (ALC) reused for error feedback, it realizes an ideal 1st-order