TriggerShock Posted June 9, 2010 Report Share Posted June 9, 2010 If I have a 12 bit ADC with a reference voltage of 4.096V it should be able to detect changes in voltage up to 1mV correct?However when you attenuate a signal that is much larger than Vref, you are not going to get nice 1mv steps. What are the considerations one should make to help mitigate the differences to acheive the greatest accuracy/precision. Quote Link to comment Share on other sites More sharing options...
Hero999 Posted June 9, 2010 Report Share Posted June 9, 2010 The ADC will always be as accurate as the voltage you want to measure divided by 4096. Dividing, amplifying and level shifting will always introduce more error which will depend on the quality of the components used. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.