A second-order temperature compensated bandgap reference for analog -to -digital converter

A proposed second-order temperature curvature compensated bandgap voltage reference circuit for analog -to - digital converter is presented. The circuit has high power supply rejection ratio (PSRR) and low-temperature coefficient. Based on the TSMC 0.18µm CMOS model,the simulation results using HSPI...

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Bibliographic Details
Published in2010 International Conference On Computer Design and Applications Vol. 1; pp. V1-354 - V1-356
Main Authors Junru Liu, Pingjuan Niu, Tiecheng Gao
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2010
Subjects
Analog computers
Analog-digital conversion
bandgap voltage reference
Bipolar transistors
Circuit simulation
CMOS technology
Mirrors
Photonic band gap
Power supplies
PSRR
second-order
temperature coefficient
Temperature distribution
Voltage
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Summary:A proposed second-order temperature curvature compensated bandgap voltage reference circuit for analog -to - digital converter is presented. The circuit has high power supply rejection ratio (PSRR) and low-temperature coefficient. Based on the TSMC 0.18µm CMOS model,the simulation results using HSPICE show the temperature coefficient of the circuit is 8.62ppm/°C between the temperature range of − 25°C to + 115°C and the PSRR is the−100dB until 500Hz. The bandgap output voltage V ref swing is 0.02mV when the power supply voltage is between 2.5V and 4.5V.Therefore, this design is an effective way to implement a bandgap voltage reference.
DOI:10.1109/ICCDA.2010.5540853