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AD7124: how to connect the unused inputs AINx and REFINx?

Question asked by vangelov61 on Feb 16, 2018
Latest reply on Feb 18, 2018 by JellenieR

Hi,

I have not found any recommendations how to connect the unused ADC inputs and eventually REFIN1 inputs (when internal reference used). Of course the simplest that can be done is to connect all them to AVSS (analog ground). For a similar ADC of TI (ADS1257) the datasheet recommends to connect the unused ADC inputs rather to AVDD or some mid voltage.

Any suggeestions?

Sincerely yours,

V.Angelov

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