Guoqiang Zhang, Kosuke Yayama, Akio Katsushima, Takahiro Miki. A 3.2 ppm/°C Second-Order Temperature Compensated CMOS On-Chip Oscillator Using Voltage Ratio Adjusting Technique. J. Solid-State Circuits, 53(4):1184-1191, 2018. [doi]
Abstract is missing.