A 1-V-0.6-V 9-b 1.5-MS/s Reference-Free Charge-Sharing SAR ADC for Wireless-Powered Implantable Telemetry. - Jen-Huan Tsai; Hui-Huan Wang; Yen-Ju Chen; Yen-Hsin Wei; Yo-Hsien Kao; Yang-Chi Yen; Po-Chiun Huang; Meng-Hung Shen; Hsin Chen (IEEE Trans. Circuits Syst. II Express Briefs, 2014)