I would like to use AD5933 as Electrochemical impedance spectroscopy as mentioned in the datasheet. However, the device is not capable of outputting the ±20 mV range. What is the recommended method or device for doing this?
The AD5933 is the only spectral analyser chip currently available for this type of impedance measurement. You could try signal conditining the signal - attenuating before the sensor and gaining up before ADC input but this will significanlyt affect your accuracy due to noise etc.
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