CMOSインバータを用いた低電圧擬似全差動増幅器の設計

• 小森山, 恵士

• 谷本, 洋

抄録

A CMOS inverter-based fully differential Om is proposed, which can operate from a low power supply voltage and has crosscoupled phase neutrization. Modemfine line CMOS inverters exhibit rather low voltage gain When used as analog transconductors. We propose two-stage configuration to increase voltage gain. To prevent common-mode instability, we adoptedthe Nauta's OTA, which is fully differential with common mode suppression capability'for each stage of the two-stage construction. Phase compensation is also required for differential-mode instability in this two-stage construnction, we employed cross-coupled capacitor neutrarization for maximam unity gain frequency. We confirmed by SPICE simulation, that the phase characteristic has been improved without slgnificant degradation of unity gain bandwidth, assumlng 0.18 μm CMOS process operatlng from 1 V power supply voltage.

収録刊行物

• 電気学会研究会資料. ECT, 電子回路研究会

  電気学会研究会資料. ECT, 電子回路研究会 ECT-06 (52), 1-6, 2006

  一般社団法人 電気学会

キーワード

• 擬似全差動増幅器
• 位相中和
• CMOSインバータ

詳細情報

• CRID: 1050290307575137920
• NII論文ID: 10018156702
• NII書誌ID: AN10441815
• Web Site: https://kitami-it.repo.nii.ac.jp/records/8569
• 本文言語コード: ja
• 資料種別: conference paper
• データソース種別:
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  • CiNii Articles