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Operational amplifiers used in switch-capacitance applications must have high speed, high accuracy and low power consumption. In this paper a design method for a two-stage hybrid-cascade compensation operational amplifier based on settling behavior in closed-loop applications is proposed. This methodology, which optimizes the relationship between settling-time and bandwidth of an amplifier, has been...
In this paper a 5th-order single-loop sigma-delta modulator with combination of low distortion and hybrid structures is presented. This structure, which uses integrator and IIR filter concurrently, has relatively less feed-forward paths and modulator coefficients. Thus, its sensitivity to coefficient mismatching is reduced. To lower the power consumption of the modulator, the IIR filter block is implemented...
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