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Op-amp A1 actively drives …

Op-amp A1 actively drives digital pot U1 wiper terminal PW0 to force VPBO = VB while drawing negligible current through resistance RWB, thus cancelling the effect of RW

AuthorsStephen Woodward
Main DocumentArticle «Op-amp wipes out DPOT wiper resistance»
DescriptionFigure 1
File Format / SizePDF / 16 Kb
Document LanguageEnglish

Op-amp A1 actively drives digital pot U1 wiper terminal PW0 to force V sub PBO /sub = V sub B /sub while drawing negligible current through resistance R sub WB /sub , thus cancelling the effect of R sub W /sub

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