Evaluation of low-voltage CMOS differential amplifier for smartphone sensing

Kyohei Kawamura, Yoshinori Matsumoto

研究成果: Conference contribution

抄録

The purpose of this study is to design a low voltage differential amplifier circuit driven by the audio interface to realize the sensing device without external power supply. The pseudo-differential amplifier was designed using a inverter-based subtracting circuit with 0.18μm standard CMOS process. The maximum differential gain was measured as 51.4dB at 1V supply voltage, and the CMRR was 45.1dB. The input offset temperature drift is 1.5μV/ 'C. In addition, the simulation was carried out for the sensing circuit in the smartphone configuration.

本文言語English
ホスト出版物のタイトルIEEE SENSORS 2012 - Proceedings
DOI
出版ステータスPublished - 2012 12月 1
イベント11th IEEE SENSORS 2012 Conference - Taipei, Taiwan, Province of China
継続期間: 2012 10月 282012 10月 31

出版物シリーズ

名前Proceedings of IEEE Sensors

Other

Other11th IEEE SENSORS 2012 Conference
国/地域Taiwan, Province of China
CityTaipei
Period12/10/2812/10/31

ASJC Scopus subject areas

  • 電子工学および電気工学

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