Transcription of Understanding and minimising ADC conversion errors
{{id}} {{{paragraph}}}
Example: bachelor of science
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.
At the end of all the bit comparisons we get the corresponding digital output for the analog input. The successive approximation steps are shown in Table 1. As you can see, the digital output obtained from the ADC is B2h when the analog input is 3.5V. Table 1. 8-bit ADC successive approximation steps Steps Vin = 3.5v, V AREF= 5V Digital code ...
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: