Hi Everyone,
I have a couple questions about ADCs and I couldn't find any straight forward answers to them during my googling.
1) If I have a 12 bit ADC whose reference voltage is 3.3v, is there a way to accurately measure a voltage higher than 3.3v without using a voltage divider at the input?
2) If there is not other way, is there a way to design a voltage divider to work with variable voltages and still get the same result (eg. 5v to 3.3v AND 8v to 3.3v with the same divider)?
3) Do you have any good online resources besides AAC to help me and/or expand my knowledge?
Thank you!
I have a couple questions about ADCs and I couldn't find any straight forward answers to them during my googling.
1) If I have a 12 bit ADC whose reference voltage is 3.3v, is there a way to accurately measure a voltage higher than 3.3v without using a voltage divider at the input?
2) If there is not other way, is there a way to design a voltage divider to work with variable voltages and still get the same result (eg. 5v to 3.3v AND 8v to 3.3v with the same divider)?
3) Do you have any good online resources besides AAC to help me and/or expand my knowledge?
Thank you!