标签: bandgap-currentref

BandGap-CurrentRefBandgapCurrentReference(RQESubmission)MatthewC.GuytonandHae-SeungLee,MITMarch13,2003AbstractAsimplelow-powercurrentsourcewithlowsensitivitytotemperatureandpower-supplyispresented.Implementedina0.35umCMOSprocess,the2-terminalcircuitdirectlyproducesabandgap-referencedoutputcurrentwithouttheuseofanoperationalamplier.Thisdesignrequiresnoexcessbiasingcurrent.Thedesignedcurrentsourceemploys6transistorsand3resistors.Itexhibits142ppm/degCovera5-50degCrange.Outputresistanceis350kOhm.Powerconsumedis160uWmeasuredat80uAnominaloutputcurrentand2Vsupply.Thesamebasicdesigncanbeusedtogeneratenon-integermultiplesofbandgapvoltagewithoutanop-amp.1IntroductionMostanalogcircuitsrequirereferen……