A High-Speed BiCMOS Fully Differential Operational Amplifier with Improved Slew Rate and Phase Margin


A high-gain high-speed fully differential folded-cascade operational amplifier with improved slew rate (SR) is implemented in a 0.6-μm SiGe BiCMOS process. The amplifier can source/sink much larger current than the quiescent current when output voltage is slewing, even with a current reduction in the common-base path. Compared to the CMOS folded-cascode… (More)


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