As we learnt that op amp LMV793 (tansimpedence amplifier) can amplify small range of currents of order nA to the voltages of the range in mV.
The problem is that when an input of 208nA is given to input of LMV793 we have got an output of 194mV (DC) which was measured by means of a multimeter and we have not bothered of the AC voltage.But When we observed the same output on a CRO we have found a wave which is not the required output.
HOW TO ELIMINATE THAT ADDITIONAL AC VOLTAGE???