A Design Strategy for a 1-V Rail-to-Rail Input/Output CMOS Operational Amplifier in Standard CMOS Technology
نویسندگان
چکیده
A design strategy for a rail-to-rail input / output operational amplifier in standard CMOS 0.18 μm digital process with a 0.5-V threshold is presented. It uses a novel level shifting technique of the input signal and a dynamically biased class AB output stage based on a switched-capacitor configuration. The amplifier is capable of working with a power supply as low as 1-V while providing a 26.6 MHz unity gain frequency and a 67 degree phase margin with a load condition of 5 pF and 20 kΩ. The overall circuit dissipates 400 μW.
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