A Digital Reference-less CDR Achieving Bandwidth Down to 4 Hz and Locking Time Less Than 1000 Cycles Based on a Self-Adaptive PFD for Medical Implant Applications. - Dingfu He; Yi Ding; Hongming Lyu 002 (ISCAS, 2025)

A 16-Channel Neurostimulation IC With Self-Biased Monopolar Stimulus Drivers and a Multiple-Output Charge-Pump Converter Achieving 25.44-mW/mm2 Power Density in Low-Voltage CMOS. - Pengfei Han; Yi Ding; Dingfu He; Xinqin Guo; Shiyv Wu; Hongming Lyu 002 (IEEE Trans. Circuits Syst. I Regul. Pap., 2025)