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A precision CMOS bandgap reference

1014 IEEEJOURNALOFSOLID-STATECIRCUITS, , , , ,threep-tubresistors,andoneop-amparenece ssarytoproduceareferencewithfixedvoltage of than2percent,whilekeepingthermaldriftbel ow40ppm/ ~ Cto125 ,atmodestcostincircuitcomplexity, ,thevoltagereferenceisoftenapotentiallym osttroublesomecomponentsinceitmustproduc eatemperaturestable,processinvariant, , ;however,theabsolutemagnitudeofoutputisp oorlycontrolledbecauseitdependsontheaccu racyofdepletionandenhancementimplants[1] .Inthebandgapreferences,wheretheoutputis derivedfromthevoltagedifferenceoftwodiod esforwardbiasedbyratioedcur-rents,bothth ethermaldriftandtheabsolutevalueoftheout putcanbecontrolledwithprecision[2] [4].

1014 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. SC-19, NO. 6, DECEMBER 1984 A Precision CMOS Bandgap Reference JOHN MICHEJDA AND SUK K. KIM Abstract — This paper describes the design of a precision on-chip band- gap voltage reference for applications with CMOS analog circuits.

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  Design, Reference, Precision, Cmos, Bandgap, A precision cmos bandgap reference

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