Oct 28, 2019
06:13 AM
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Oct 28, 2019
06:13 AM
Hi all,
Is input voltage lower than 0V is converted to the same as 0V by SAR Analog-Digital Converter (ADC)? And how about higher than Vref?
Thanks!
Bernie
#8042000 13092
Is input voltage lower than 0V is converted to the same as 0V by SAR Analog-Digital Converter (ADC)? And how about higher than Vref?
Thanks!
Bernie
#8042000 13092
- Tags:
- IFX
1 Reply
Oct 28, 2019
09:59 AM
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Oct 28, 2019
09:59 AM
Hi again,
If input voltage is lower than VAGND, then for VADC the result is 0V. According to SAR ADC architecture, it is impossible to produce negative result.
In case of higher voltage, max digital output is 0xFFF. we will only show result between 0 and FFF.
Regards
Lucas
If input voltage is lower than VAGND, then for VADC the result is 0V. According to SAR ADC architecture, it is impossible to produce negative result.
In case of higher voltage, max digital output is 0xFFF. we will only show result between 0 and FFF.
Regards
Lucas