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A simple CMOS Bandgap Reference Design

Zeng Ze-can

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Abstract

This paper proposes a precise CMOS bandgap voltage reference with high power supply rejection ratio(PSRR).The voltage supply is 3.3V.Using CSMC 0.5 um CMOS process,Spectre simulation shows that the average temperature coefficient is 45.53×10-6/℃ in the rage of -40～80℃.The circuit also has change small when power supply voltage changes from 2～5V.The PSRR is the -73.3dB.

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What this paper is about

This paper proposes a precise CMOS bandgap voltage reference with high power supply rejection ratio(PSRR).The voltage supply is 3.3V.Using CSMC 0.5 um CMOS process,Spectre simulation shows that the average temperature coefficient is 45.53×10-6/℃ in the rage of -40～80℃.The circuit also has change small when power supply voltage changes from 2～5V.The PSRR is the -73.3dB.

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Available abstract

This paper proposes a precise CMOS bandgap voltage reference with high power supply rejection ratio(PSRR).The voltage supply is 3.3V.Using CSMC 0.5 um CMOS process,Spectre simulation shows that the average temperature coefficient is 45.53×10-6/℃ in the rage of -40～80℃.The circuit also has change small when power supply voltage changes from 2～5V.The PSRR is the -73.3dB.

Key concepts: Power supply rejection ratio, Bandgap voltage reference, CMOS, Voltage reference, Computer science, Voltage, Power (physics), Electrical engineering

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