| Presentation | 2014-08-05 CMOS Relaxation Oscillator for a Real-Time Clock Application Keishi TSUBAKI, Tetsuya HIROSE, Toshihiro OZAKI, Nobutaka KUROKI, Masahiro NUMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes an ultra-low power fully on-chip CMOS relaxation oscillator (ROSC) for a realtime clock application. The proposed ROSC employs a compensation circuit of comparator's non-idealities caused by offset voltage and delay time. The ROSC can generate a stable and 32-kHz oscillation clock frequency without increasing power dissipation by using a low reference voltage and employing a novel compensation architecture for comparators. Measurement results in a 0.18-μm CMOS process demonstrated that the circuit can generate a stable clock frequency of 32.55 kHz with low power dissipation of 472 nW at 1.8-V power supply. Measured line regulation and temperature coefficient were 1.1%/V and 120ppm/℃, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ROSC / RTC / oscillator / comparator / PVT variation / low-power |
| Paper # | SDM2014-80,ICD2014-49 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 2014/7/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | CMOS Relaxation Oscillator for a Real-Time Clock Application |
| Sub Title (in English) | |
| Keyword(1) | ROSC |
| Keyword(2) | RTC |
| Keyword(3) | oscillator |
| Keyword(4) | comparator |
| Keyword(5) | PVT variation |
| Keyword(6) | low-power |
| 1st Author's Name | Keishi TSUBAKI |
| 1st Author's Affiliation | Graduate School of Engineering, Kobe University() |
| 2nd Author's Name | Tetsuya HIROSE |
| 2nd Author's Affiliation | Graduate School of Engineering, Kobe University |
| 3rd Author's Name | Toshihiro OZAKI |
| 3rd Author's Affiliation | Graduate School of Engineering, Kobe University |
| 4th Author's Name | Nobutaka KUROKI |
| 4th Author's Affiliation | Graduate School of Engineering, Kobe University |
| 5th Author's Name | Masahiro NUMA |
| 5th Author's Affiliation | Graduate School of Engineering, Kobe University |
| Date | 2014-08-05 |
| Paper # | SDM2014-80,ICD2014-49 |
| Volume (vol) | vol.114 |
| Number (no) | 175 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |