| Presentation | 2016-12-15 [Poster Presentation] CMOS Transimpedance Analog Front End Circuit for an Optical Probe Current Sensor Kousuke Oyangi, Kousuke Miyaji, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An optical probe current sensor using the magneto-optical effect has been studied for power electronics. This sensor shows better temperature characteristics and smaller sensor head compared to a Hall element current sensor with a magnetic yoke. An optical probe current sensor first converts target current into a differential photo signal of P and S polarization obtained from a magneto-optical effect of the magnetic film whose magnetization is induced by the magnetic field of the target current. Then, an analog front end circuit (AFE) using transimpedance amplifier (TIA) converts the differential photo signal detected by photodiodes into a voltage signal. However, in the previous work, TIA was composed of discrete devices and its bandwidth was low due to the parasitic capacitance of the photodiodes. In this work, a TIA with regulated cascode amplifier (RGC) is designed to increase a bandwidth of the AFE circuit. The measured transimpedance gain is 117.3dBOhm,SFDR of 40dB at the output frequency of 2MHz using a 0.18um standard CMOS process. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | current sensor / TIA / analog-front-end circuit / CMOS / high bandwidth / magneto-optical effect |
| Paper # | ICD2016-74,CPSY2016-80 |
| Date of Issue | 2016-12-08 (ICD, CPSY) |
| Conference Information | |
| Committee | ICD / CPSY |
|---|---|
| Conference Date | 2016/12/15(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Minoru Fujishima(Hiroshima Univ.) / Yasuhiko Nakashima(NAIST) |
| Vice Chair | Hideto Hidaka(Renesas) / Koji Nakano(Hiroshima Univ.) / Hidetsugu Irie(Univ. of Tokyo) |
| Secretary | Hideto Hidaka(Hiroshima Univ.) / Koji Nakano(Univ. of Tokyo) / Hidetsugu Irie(Fujitsu Labs.) |
| Assistant | Takashi Hashimoto(Panasonic) / Masanori Natsui(Tohoku Univ.) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Pham Konkuha(Univ. of Electro-Comm.) / Takeshi Ohkawa(Utsunomiya Univ.) / Shinya Takameda(Hokkaido Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Integrated Circuits and Devices / Technical Committee on Computer Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] CMOS Transimpedance Analog Front End Circuit for an Optical Probe Current Sensor |
| Sub Title (in English) | |
| Keyword(1) | current sensor |
| Keyword(2) | TIA |
| Keyword(3) | analog-front-end circuit |
| Keyword(4) | CMOS |
| Keyword(5) | high bandwidth |
| Keyword(6) | magneto-optical effect |
| 1st Author's Name | Kousuke Oyangi |
| 1st Author's Affiliation | Shinshu University(Shinshu Univ.) |
| 2nd Author's Name | Kousuke Miyaji |
| 2nd Author's Affiliation | Shinshu University(Shinshu Univ.) |
| Date | 2016-12-15 |
| Paper # | ICD2016-74,CPSY2016-80 |
| Volume (vol) | vol.116 |
| Number (no) | ICD-364,CPSY-365 |
| Page | pp.pp.67-67(ICD), pp.67-67(CPSY), |
| #Pages | 1 |
| Date of Issue | 2016-12-08 (ICD, CPSY) |