Hi colleagues,
the power supply and reference setting of ADS7952:
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we use 2xVref (2.5V) for a 3.3V power supply system, now we test our demo with this condition and input voltage is lower than the 3.3V power supply (below 3V).
the testing results seems OK.
but out testing condition is not listed in the datasheet as shown in the attached picture.
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my questions are,
- is this right way for application of this chip?
- do we need to keep the power supply higher than 2xVref (2.5V), such as 5V?
- if not, what is the limitation for the analog input voltage range?
Thanks in advance for the help.