A 3.2 ppm/°C Second-Order Temperature Compensated CMOS On-Chip Oscillator Using Voltage Ratio Adjusting Technique. - Guoqiang Zhang 005; Kosuke Yayama; Akio Katsushima; Takahiro Miki (IEEE J. Solid State Circuits, 2018)

A Differential on Chip Oscillator with 1.47-μs Startup Time and 3.3-ppm/°C Temperature Coefficient of Frequency. - Guoqiang Zhang 005; Lingjin Cao; Kosuke Yayama; Akio Katsushima; Takahiro Miki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2021)