A 250 kHz Resistive Frequency-Locked On-Chip Oscillator with 24.7 ppm/°C Temperature Stability and 2.73 ppm Long-Term Stability. - Sheng-Kai Chang; Zhi-Ting Tsai; Kuang-Wei Cheng (ISCAS, 2020)

Design and Analysis of a Resistive Frequency-Locked Oscillator With Long-Term Stability Using Double Chopper Stabilization. - Kuang-Wei Cheng; Sheng-Kai Chang; Bo-Sheng Li; Zhi-Ting Tsai (IEEE Trans. Circuits Syst. I Regul. Pap., 2023)