外部电阻器最大限度减少 Digipot 加载

摘要：本文讨论了如何通过添加H与W.之间的单一外部电阻器提高（由于刮水器的加载）的线性和中档频率响应的VCO控制应用程序中的数字电位器

Maxim>Designsupport>Appnotes>DigitalPotentiometers>APP2095Maxim>Designsupport>Appnotes>GeneralEngineeringTopics>APP2095Keywords:digitalpot,digitalpotentiometers,lineardigitalpots,digipots,VCOcontrol,potentiometerJun02,2003APPLICATIONNOTE2095ExternalResistorMinimizesDigipotLoadingBy:LeoSahlstenAbstract:Thisarticlediscusseshowtoimprovelinearity(duetoloadingofthewiper)andmid-rangefrequencyresponseofadigitalpotentiometerinVCOcontrolapplicationsbyaddingasingleexternalresistorbetweenHandW.DigitalpotentiometerICs(digitalpots,ordigipots)areconvenientforcontrollingvoltage-c