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2011•Journal of Lanzhou Jiaotong UniversityRequires access

Design of a High Performance Bandgap Voltage Reference with Adjustable Output

Zou Wei

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Abstract

A novel bandgap voltage reference with simple structure is designed based on classic bandgap reference structure.Using curvature compensation technique,the bandgap voltage reference features low temperature coefficient and high power supply rejection ratio(PSRR).The circuit is simulated with Cadence tool and 0.5 μm CMOS model.The results show that the voltage reference's temperature coefficient is 5.8 ppm/℃ over the temperature range of-40~120℃ and a line regulation of 0.24 mV/V from 2 V to 3.6 V.The central value of the reference voltage is adjustable in a wide range,and the performance parameters meet the design requirements.

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What this paper is about

A novel bandgap voltage reference with simple structure is designed based on classic bandgap reference structure.Using curvature compensation technique,the bandgap voltage reference features low temperature coefficient and high power supply rejection ratio(PSRR).The circuit is simulated with Cadence tool and 0.5 μm CMOS model.The results show that the voltage reference's temperature coefficient is 5.8 ppm/℃ over the temperature range of-40~120℃ and a line regulation of 0.24 mV/V from 2 V to 3.6 V.The central value of the reference voltage is adjustable in a wide range,and the performance parameters meet the design requirements.

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Available abstract

A novel bandgap voltage reference with simple structure is designed based on classic bandgap reference structure.Using curvature compensation technique,the bandgap voltage reference features low temperature coefficient and high power supply rejection ratio(PSRR).The circuit is simulated with Cadence tool and 0.5 μm CMOS model.The results show that the voltage reference's temperature coefficient is 5.8 ppm/℃ over the temperature range of-40~120℃ and a line regulation of 0.24 mV/V from 2 V to 3.6 V.The central value of the reference voltage is adjustable in a wide range,and the performance parameters meet the design requirements.

Key concepts: Bandgap voltage reference, Power supply rejection ratio, Voltage reference, Temperature coefficient, Line regulation, Voltage, Silicon bandgap temperature sensor, Materials science

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