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Consideration for AD8421

Question asked by chaitanya on Mar 28, 2013
Latest reply on Apr 2, 2013 by chaitanya

Dear all,

                 I have rigged up a circuit with AD8421,supply voltages +30V (+Vs) and -2.5V (-Vs).  The circuit is working properly at only unity gain, when i have tried to put up some gain around 10 to 100, the output of the amplifier is not up to the calculated value. No issues with the circuit connections. Am i wrong with the ic selection? Is there any fixed gain version of this ic? Part Number of IC: AD8421ARZ. Is there any issue with the supplies? Any reply will be helpful.