Title:
TwoCMOSBandgapReferenceSourcecircuit
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Description: ( TheGraduateSchooloftheChineseAcademyofSciences,Beijing100080)
Abstract:TwotypesofCMOSbandgapreferencecircuits，withfixedandunfixed
outputvoltagesrespectively,arepresentedinthispaper.Insteadofresistances
inconventionalbandgapreference,acascodecurrentmirrorwithPMOSandNMOSis
usedtoproducebiascurrentsforbipolartransistors,hencethedissipationand
errorsresulted from the effectofthe channel length modulationareboth
reduced.Thecircuitsaresimulatedinsmic0.18umCMOSprocess,with3.3volts
supply.Theresultsshowthatthetemperaturecoefficientoftheoutputofthe
bandgapvoltagesare5x10/0C and3.1x10-5/0C respectively thesupplyvoltage
haslittleinfluenceontheoutputreferencewhenitisabove2.5volts.
To Search:
- [pat7253596] - Bandgap reference voltage in the analog
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Two CMOS Bandgap Reference Source circuit.pdf
