A 96.88% area-saving and 99.72% energy-reduction switching scheme for SAR ADC with a novel two-step quantisation technique. - Zhou, Rong; Liu, Shubin; Liu, Jian; Ding, Ruixue; Wang, Jingyu; Huang, Sheng; Zhu, Zhangming (Analog Integrated Circuits & Signal Processing, 2019)