Transcription of Understanding and minimising ADC conversion errors
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Understanding and minimising ADC conversion errors
AN1636/06031/42AN1636 APPLICATION NOTEUNDERSTANDING AND minimising ADC CONVERSIONERRORSBy Microcontroller Division Applications1 INTRODUCTIONThe purpose of this document is to explain the different ADC errors and the techniques thatapplication developers can use to minimise them. The ADC (Analog to digital Converter) is animportant peripheral that connects the analog world to the digital world of this application note the ADC embedded in the ST7 microcontroller is used as an example,however the same principles to apply to other accuracy of analog to digital conversion has an impact on overall system quality and effi-ciency. To be able to improve accuracy you need to understand the errors associated with theADC and the parameters affecting ADC itself, cannot ensure the accuracy of results, It depends on your overall system de-sign. For this reason, you need to do some careful preparation before starting your of parameters affect the ADC accuracy depending on the application.
UNDERSTANDING AND MINIMISING ADC CONVERSION ERRORS ... The more bits there are in the output, the closer the digital result will be to the analog signal. In other words, the resolution of the ADC is defined by the number of bits in the digital result (8 bits, 10 bits etc) and the input voltage range. ...
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