The large-signal performances of switched-capacitor (SC) circuits employing two-stage operational amplifiers (opamps) with current-buffer Miller compensation are analyzed. Well-defined rules to fix carefully the bias currents of the two op-amp stages are proposed in order to optimize the amplifier settling behavior. Simulation results related to op-amps designed in a commercial 0.35 μm CMOS technology show the usefulness of the proposed design guidelines.
Large-Signal Settling Optimization of SC Circuits Using Two-Stage Amplifiers with Current-Buffer Miller Compensation
CAPPUCCINO, Gregorio
2009-01-01
Abstract
The large-signal performances of switched-capacitor (SC) circuits employing two-stage operational amplifiers (opamps) with current-buffer Miller compensation are analyzed. Well-defined rules to fix carefully the bias currents of the two op-amp stages are proposed in order to optimize the amplifier settling behavior. Simulation results related to op-amps designed in a commercial 0.35 μm CMOS technology show the usefulness of the proposed design guidelines.File in questo prodotto:
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