A Low-Power High PSRR CMOS Bandgap Voltage Reference
Wei Tongli
Abstract
Wei Tongli
Abstract
A bandgap voltage reference circuit suitable for digital CMOS process is presented in the paper. Using MOSFET operating in subthreshold region and a high gain feedback loop, the bandgap voltage reference has high power supply rejection ratio (PSRR) and low-temperature coefficient. The circuit can be used in low-power and low-voltage analog circuits.
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A bandgap voltage reference circuit suitable for digital CMOS process is presented in the paper. Using MOSFET operating in subthreshold region and a high gain feedback loop, the bandgap voltage reference has high power supply rejection ratio (PSRR) and low-temperature coefficient. The circuit can be used in low-power and low-voltage analog circuits.
Key concepts: Bandgap voltage reference, Power supply rejection ratio, Subthreshold conduction, Voltage reference, CMOS, Electrical engineering, Materials science, Overdrive voltage