Design of a High Frequency Low Voltage CMOS Operational Amplifier

A method is presented in this paper for the design of a high frequency CMOS Operational Amplifier (Op-Amp) which operates at 3V power supply using TSMC 0.18 micron CMOS technology. The Op-Amp designed is a two-stage CMOS Op-Amp followed by an output buffer. This Operational Trans-conductance Amplifier (OTA) employs a Miller capacitor and is compensated with a current buffer compensation technique. The unique behavior of the MOS transistors in saturation region not only allows a designer to work at a low voltage, but also at a high frequency.

Provided by: Academy & Industry Research Collaboration Center Topic: Hardware Date Added: Mar 2011 Format: PDF

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