TY - GEN
T1 - A 0.98 pJ/Cycle 3.7 ppm Long-Term Stability Frequency-Locked Oscillator with Switched-Capacitor and Switched-Resistor Techniques
AU - Hsieh, Yun Sheng
AU - Li, Bo Sheng
AU - Cheng, Kuang Wei
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - This work presents an energy-efficient on-chip resistive frequency-locked oscillator (RFLO) for achieving superb temperature and frequency stabilities. The resistive frequency-locked oscillator outperforms the power consumption and the temperature coefficient (TC) compared to the conventional relaxation oscillator. Frequency dividers are utilized in the feedback loop to reduce the reference current and clock power consumption. Moreover, switched-capacitor and switched-resistor techniques are both exploited to accomplish low area and low power consumption. This work was fabricated in TSMC 0.180μm process. The prototype operates at 200 kHz and achieves a 23.5 ppm/°C of TC across the temperature range from -40°C to 90°C and a line sensitivity of 0.44 %/V. Consuming 196 nW at 1 V supply voltage, it can reach a 0.98 pJ/cycle of energy efficiency.
AB - This work presents an energy-efficient on-chip resistive frequency-locked oscillator (RFLO) for achieving superb temperature and frequency stabilities. The resistive frequency-locked oscillator outperforms the power consumption and the temperature coefficient (TC) compared to the conventional relaxation oscillator. Frequency dividers are utilized in the feedback loop to reduce the reference current and clock power consumption. Moreover, switched-capacitor and switched-resistor techniques are both exploited to accomplish low area and low power consumption. This work was fabricated in TSMC 0.180μm process. The prototype operates at 200 kHz and achieves a 23.5 ppm/°C of TC across the temperature range from -40°C to 90°C and a line sensitivity of 0.44 %/V. Consuming 196 nW at 1 V supply voltage, it can reach a 0.98 pJ/cycle of energy efficiency.
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U2 - 10.1109/ISCAS46773.2023.10182024
DO - 10.1109/ISCAS46773.2023.10182024
M3 - Conference contribution
AN - SCOPUS:85167651738
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
BT - ISCAS 2023 - 56th IEEE International Symposium on Circuits and Systems, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 56th IEEE International Symposium on Circuits and Systems, ISCAS 2023
Y2 - 21 May 2023 through 25 May 2023
ER -
