| Presentation | 2017-01-31 A fully on-chip, ultra-low power RC oscillator with current mode architecture for real time clock applications Hiroki Asano, Tetsuya Hirose, Keishi Tsubaki, Taro Miyoshi, 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) | A compact and low-power current-mode RC oscillator (RCO) with process, voltage, and temperature (PVT) stability has been developed. The circuit employs a current-mode RCO architecture without using a conventional comparator based voltage-mode architecture. The current-mode architecture enables a compact RCO and faster switching speed to be achieved. By designing transistor sizes equally between one in a bias circuit and another in a voltage to current converter, the effect of process variation can be minimized. A prototype chip in a 0.18-um CMOS process demonstrated that the RCO generates a stable clock frequency of 32.7 kHz with a small area of 0.19 mm2 and low-power dissipation of 54.2 nW at 0.85-V power supply, which achieves a figure of merit (FoM) of 1.66 nW/kHz. The measured temperature coefficient and line regulation were 99.5ppm/?C and 8.9ppm/mV, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Relaxation Oscillator (ROSC) / Real-time clock (RTC) / Ultra-low power / High accuracy / PVT variation |
| Paper # | EMD2016-85,MR2016-57,SCE2016-63,EID2016-64,ED2016-128,CPM2016-129,SDM2016-128,ICD2016-116,OME2016-97 |
| Date of Issue | 2017-01-23 (EMD, MR, SCE, EID, ED, CPM, SDM, ICD, OME) |
| Conference Information | |
| Committee | ICD / CPM / ED / EID / EMD / MR / OME / SCE / SDM |
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| Conference Date | 2017/1/30(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Miyajima-Morino-Yado(Hiroshima) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Circuit, Device and Engineering Science |
| Chair | Minoru Fujishima(Hiroshima Univ.) / Satoru Noge(Numazu National College of Tech.) / Koichi Maezawa(Univ. of Toyama) / Tomokazu Shiga(Univ. of Electro-Comm.) / Yoshiteru Abe(NTT) / Yoshihiro Okamoto(Ehime Univ.) / Naoki Matsuda(AIST) / Nobuyuki Yoshikawa(Yokohama National Univ.) / Tatsuya Kunikiyo(Renesas) |
| Vice Chair | Hideto Hidaka(Renesas) / Fumihiko Hirose(Yamagata Univ.) / Kunio Tsuda(Toshiba) / Mutsumi Kimura(Ryukoku Univ.) / Yuko Kominami(Shizuoka Univ.) / / / Tatsuo Mori(Aichi Inst. of Tech.) / / Takahiro Shinada(Tohoku Univ.) |
| Secretary | Hideto Hidaka(Hiroshima Univ.) / Fumihiko Hirose(Univ. of Tokyo) / Kunio Tsuda(NTT) / Mutsumi Kimura(Nihon Univ.) / Yuko Kominami(JAIST) / (New JRC) / (NTT) / Tatsuo Mori(Tokyo Inst. of Tech.) / (Sumitomo Denso) / Takahiro Shinada(Fujielectric) |
| Assistant | Takashi Hashimoto(Panasonic) / Masanori Natsui(Tohoku Univ.) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Pham Konkuha(Univ. of Electro-Comm.) / Takashi Sakamoto(NTT) / Yuichi Nakamura(Toyohashi Univ. of Tech.) / Masataka Higashiwaki(NICT) / Toshiyuki Oishi(Saga Univ.) / Rumiko Yamaguchi(Akita Univ.) / Hiroyuki Nitta(Japan Display) / Mitsuru Nakata(NHK) / Takashi Kojiri(ZEON) / Ryosuke Nonaka(Toshiba) / Yoshiki Kayano(Univ. of Electro-Comm.) / Yuichi Hayashi(Tohoku Gakuin Univ.) / Kiwamu Kudo(Toshiba) / Shuhei Yoshida(Kinki Univ.) / Hirotake Kajii(Osaka Univ.) / Dai Taguchi(Tokyo Inst. of Tech.) / Hiroyuki Akaike(Nagoya Univ.) / Yuki Yamanashi(Yokohama National Univ.) / Hiroya Ikeda(Shizuoka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Integrated Circuits and Devices / Technical Committee on Component Parts and Materials / Technical Committee on Electron Devices / Technical Committee on Electronic Information Displays / Technical Committee on Electromechanical Devices / Technical Committee on Magnetic Recording / Technical Committee on Organic Molecular Electronics / Technical Committee on Superconductive Electronics / Technical Committee on Silicon Device and Materials |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A fully on-chip, ultra-low power RC oscillator with current mode architecture for real time clock applications |
| Sub Title (in English) | |
| Keyword(1) | Relaxation Oscillator (ROSC) |
| Keyword(2) | Real-time clock (RTC) |
| Keyword(3) | Ultra-low power |
| Keyword(4) | High accuracy |
| Keyword(5) | PVT variation |
| 1st Author's Name | Hiroki Asano |
| 1st Author's Affiliation | Kobe University(Kobe Univ.) |
| 2nd Author's Name | Tetsuya Hirose |
| 2nd Author's Affiliation | Kobe University(Kobe Univ.) |
| 3rd Author's Name | Keishi Tsubaki |
| 3rd Author's Affiliation | Kobe University(Kobe Univ.) |
| 4th Author's Name | Taro Miyoshi |
| 4th Author's Affiliation | Kobe University(Kobe Univ.) |
| 5th Author's Name | Toshihiro Ozaki |
| 5th Author's Affiliation | Kobe University(Kobe Univ.) |
| 6th Author's Name | Nobutaka Kuroki |
| 6th Author's Affiliation | Kobe University(Kobe Univ.) |
| 7th Author's Name | Masahiro Numa |
| 7th Author's Affiliation | Kobe University(Kobe Univ.) |
| Date | 2017-01-31 |
| Paper # | EMD2016-85,MR2016-57,SCE2016-63,EID2016-64,ED2016-128,CPM2016-129,SDM2016-128,ICD2016-116,OME2016-97 |
| Volume (vol) | vol.116 |
| Number (no) | EMD-439,MR-440,SCE-441,EID-442,ED-443,CPM-444,SDM-445,ICD-446,OME-447 |
| Page | pp.pp.81-86(EMD), pp.81-86(MR), pp.81-86(SCE), pp.81-86(EID), pp.81-86(ED), pp.81-86(CPM), pp.81-86(SDM), pp.81-86(ICD), pp.81-86(OME), |
| #Pages | 6 |
| Date of Issue | 2017-01-23 (EMD, MR, SCE, EID, ED, CPM, SDM, ICD, OME) |