| Title | A 12.5-ppm/°C 1.086-nW/kHz Relaxation Oscillator with Clock-Gated Discrete-Time Comparator in 22nm CMOS Technology |
| Authors | Xu, Xinhang Shen, Linxiao Ye, Siyuan Wu, Jiayi Chen, Zhuoyi Gao, Jihang Cui, Jiajia Zhang, Yihan Huang, Ru Ye, Le |
| Affiliation | Peking Univ, Sch Integrated Circuits, Beijing, Peoples R China |
| Issue Date | 2023 |
| Publisher | IEEE 49TH EUROPEAN SOLID STATE CIRCUITS CONFERENCE, ESSCIRC 2023 |
| Abstract | This work presents a low-power, low-temperature-coefficient (TC), digital-friendly RC relaxation oscillator (RxO) for energy-constrained Internet-of-Things (IoT) applications. Implemented in a 22nm CMOS technology that offers only PTAT resistors, the proposed swing-adaptive scheme compensates the first-order TC within the RC stage. Additionally, a clock-gated discrete-time comparator (DT-CMP) scheme is adopted to relax the trade-off between power efficiency and TC. The prototype RxO is measured to have a reference frequency of 700kHz with a TC of 12.5ppm/degrees C (from -40 degrees C to 85 degrees C), consuming 760nW with a power efficiency of 1.086nW/kHz. |
| URI | http://hdl.handle.net/20.500.11897/703038 |
| ISBN | 979-8-3503-0420-6 |
| ISSN | 1930-8833 |
| DOI | 10.1109/ESSCIRC59616.2023.10268752 |
| Indexed | CPCI-S(ISTP) |
| Appears in Collections: | 待认领 |
