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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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A High-Gain, Low-Power CMOS Operational Amplifier Using Composite Cascode Stage in the Subthreshold Region

Singh, Rishi Pratap 15 March 2011 (has links) (PDF)
This thesis demonstrates that the composite cascode differential stage, operating in the subthreshold region, can form the basis of a high gain (113 dB) and low-power op amp (28.1 µW). The circuit can be fabricated without adding a compensation capacitance. The advantages of this architecture include high voltage gain, low bandwidth, low harmonic distortion, low quiescent current and power, and small chip area. These advantages suggest that this design might be well-suited for biomedical applications where low power, low noise bio-signal amplifiers capable of amplifying signals in the millihertz-to-kilohertz range is required.
high gain
low power
low noise
low distortion
composite cascode stage
subthreshold operation
strong inversion
moderate inversion
weak inversion operation
amplifier
Electrical and Computer Engineering

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