A Dynamic Source-Follower Integrator and Its Application to ΔΣ Modulators

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概要

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• A switched-capacitor integrator based on dynamic source follower amplifiers has been proposed. Integrator operation has been confirmed and analyzed by assuming 0.18-µm CMOS technology. The integrator can reduce the number of elements considerably compared with conventional ones using operational amplifiers. As a result, the power dissipation of proposed integrator can be reduced to approximately one-eighth that of conventional integrators. The integrator is applied to a second-order ΔΣ modulator, and its successful operation has been confirmed by transistor-level circuit simulation.

• 2011-05-01

著者

• Waho Takao

  Sophia Univ.

• Adachi Fumiyuki

  Sophia University

• Yaguchi Ryota

  Sophia University

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