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Analysis of ADC System Distortion Caused by Source Resistance


关键词: ADC, analog to digital converter, voltage divider, distortion, gain error, high impedance, low impedance, sampling capacitor, time constant, a/d converters 


Abstract: Analog-to-digital converter (ADC) data sheets and application typically recommend driving their inputs with a low source impedance. This application note explains the possible effects such as increased gain error and distortion when using high impedance to drive an ADC without a buffer. 



  Analysis of ADC System Distortion Caused by Source Resistance.pdf