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In this paper, the detailed design procedure for two operational amplifiers (OP-Amp) used in charge pumps (CP) is presented. Such procedure, which is from system-level specifications to circuit-level requirements, provides a general methodology for OP-Amp design in CP. The design was simulated in a 0.18μm CMOS process and occupies a layout area of about 200μm×100μm. The simulation results show that...
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