Methods for Designing High-Precision Relaxation Oscillator
A novel low-power delay time cancellation (LPDTC) technique and a current ratio adjustment (CRA) method are proposed for designing high-precision relaxation oscillators. These methods effectively reduce the impacts of comparator delay time, offset voltage, and temperature-induced variations in resis...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-03-01
|
| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/16/4/364 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850143889108762624 |
|---|---|
| author | Zhibo Huang Kunpeng Xu Hongguang Dai Zhanxia Wu Xiaopeng Yu Guoqiang Zhang |
| author_facet | Zhibo Huang Kunpeng Xu Hongguang Dai Zhanxia Wu Xiaopeng Yu Guoqiang Zhang |
| author_sort | Zhibo Huang |
| collection | DOAJ |
| description | A novel low-power delay time cancellation (LPDTC) technique and a current ratio adjustment (CRA) method are proposed for designing high-precision relaxation oscillators. These methods effectively reduce the impacts of comparator delay time, offset voltage, and temperature-induced variations in resistors. To validate these methods, we have designed and simulated an 8 MHz open-loop relaxation oscillator using a 40 nm CMOS process. The oscillator, incorporating these advanced methods, achieves a line sensitivity of 0.38%/V and a temperature sensitivity of 43 ppm/°C over a temperature range of −40 °C to 125 °C. |
| format | Article |
| id | doaj-art-918116875a264017ba50b831b40cc975 |
| institution | OA Journals |
| issn | 2072-666X |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-918116875a264017ba50b831b40cc9752025-08-20T02:28:32ZengMDPI AGMicromachines2072-666X2025-03-0116436410.3390/mi16040364Methods for Designing High-Precision Relaxation OscillatorZhibo Huang0Kunpeng Xu1Hongguang Dai2Zhanxia Wu3Xiaopeng Yu4Guoqiang Zhang5College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, ChinaCollege of Integrated Circuits, Zhejiang University, Hangzhou 310027, ChinaCollege of Integrated Circuits, Zhejiang University, Hangzhou 310027, ChinaCollege of Integrated Circuits, Zhejiang University, Hangzhou 310027, ChinaCollege of Integrated Circuits, Zhejiang University, Hangzhou 310027, ChinaSchool of Information Science and Engineering, Ningbo Tech University, Ningbo 315100, ChinaA novel low-power delay time cancellation (LPDTC) technique and a current ratio adjustment (CRA) method are proposed for designing high-precision relaxation oscillators. These methods effectively reduce the impacts of comparator delay time, offset voltage, and temperature-induced variations in resistors. To validate these methods, we have designed and simulated an 8 MHz open-loop relaxation oscillator using a 40 nm CMOS process. The oscillator, incorporating these advanced methods, achieves a line sensitivity of 0.38%/V and a temperature sensitivity of 43 ppm/°C over a temperature range of −40 °C to 125 °C.https://www.mdpi.com/2072-666X/16/4/364relaxation oscillatoroffset voltagedelay timetemperature compensationfrequency variation |
| spellingShingle | Zhibo Huang Kunpeng Xu Hongguang Dai Zhanxia Wu Xiaopeng Yu Guoqiang Zhang Methods for Designing High-Precision Relaxation Oscillator Micromachines relaxation oscillator offset voltage delay time temperature compensation frequency variation |
| title | Methods for Designing High-Precision Relaxation Oscillator |
| title_full | Methods for Designing High-Precision Relaxation Oscillator |
| title_fullStr | Methods for Designing High-Precision Relaxation Oscillator |
| title_full_unstemmed | Methods for Designing High-Precision Relaxation Oscillator |
| title_short | Methods for Designing High-Precision Relaxation Oscillator |
| title_sort | methods for designing high precision relaxation oscillator |
| topic | relaxation oscillator offset voltage delay time temperature compensation frequency variation |
| url | https://www.mdpi.com/2072-666X/16/4/364 |
| work_keys_str_mv | AT zhibohuang methodsfordesigninghighprecisionrelaxationoscillator AT kunpengxu methodsfordesigninghighprecisionrelaxationoscillator AT hongguangdai methodsfordesigninghighprecisionrelaxationoscillator AT zhanxiawu methodsfordesigninghighprecisionrelaxationoscillator AT xiaopengyu methodsfordesigninghighprecisionrelaxationoscillator AT guoqiangzhang methodsfordesigninghighprecisionrelaxationoscillator |