A Capacitance-Ratio-Modulated Current Front-End Circuit With Pulsewidth Modulation Output for a Capacitive Sensor Interface. - Meng-Lieh Sheu; Wei-Hung Hsu; Lin-Jie Tsao (IEEE Trans. Instrum. Meas., 2012)

A 22.4 fJ/conversion 0.7V 1.6μW 10-bit successive approximation ADC. - Meng-Lieh Sheu; Te-Hsiang Liu; Lin-Jie Tsao (VLSI-DAT, 2014)