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A Folded Cascode Operational Amplifier With Wide-Swing Current Mirrors And High Icmr, Designed With A 1.2-Micron Silicon-Carbide Process, Austin Gattis
Electrical Engineering Undergraduate Honors Theses
This thesis describes in detail the process of designing, simulating, and creating the layout for a modified folded cascode op-amp, fabricated with silicon carbide MOSFETS. The modifications consist of using a wide-swing current mirror to help deal with output voltage issues stemming from high threshold voltages in the silicon carbide process, as well as using a modification that allows for an increased input common mode range. The folded cascode op-amp uses silicon carbide transistors, as it is intended to be used for high temperature applications, ideally in the 25 C - 300 C range. It is designed to have 25 …