A 124-dB double-gain-boosted cascode amplifier with 92% rail-to-rail output swing
Refereed conference paper presented and published in conference proceedings


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AbstractA CMOS amplifier with 124-dB dc gain and 92% rail-to-rail output swing is proposed in this paper. The proposed amplifier uses double gain-boosting technique, enabling triode-region operation in cascode output stage. The design is fabricated in a commercial 0.35-μm CMOS technology. The active chip area is 84 μm × 170 μm. Experimental results show that with the supplies of ±1 V, the high-gain region is extended beyond -0.93 V and 0.91 V. The unity-gain frequency is about 300 kHz with a phase margin of 65° when driving a loading capacitor of 100 pF. Signal distortion is significant reduced compared to the conventional design due to extension of the high-gain region in the proposed amplifier.
All Author(s) ListHo M., Bu S., Zheng Y., Leung K.N., Guo J.
Name of Conference2014 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2014
Start Date of Conference17/11/2014
End Date of Conference20/11/2014
Place of ConferenceIshigaki Island, Okinawa
Country/Region of ConferenceJapan
Year2015
Month1
Day1
Volume Number2015-February
Issue NumberFebruary
Pages181 - 184
LanguagesEnglish-United Kingdom

Last updated on 2020-30-05 at 00:58