My aim is to convert current obtained from CT to precise voltage that can be applied as input to ADC.

As shown in the diagram , a conductor carries current of up to 63 A passes through the Current Transformer(CT) .The CT CT 1273-A1-RC has turns ratio as 1:2500 and current range of 0 to 100A . I have made one simple circuit in which there is shunt resistor in parallel and a diode in series with CT. The current passing through CT is from power distribution unit i.e. used in server rooms. So it is ac current . $I_s=(I_p)/2500$

I_s=(63/2500)=0.0252. My requirement is maximum voltage at input of ADC should be 3.3 V . So for shunt resistor R_shunt= 3.3/0.0252=50 ohm,

Problem i am facing is how to obtain precise voltage (DC value) so that it can be applied as input to internal ADC of STM32L011x3 and display on seven segment display .So can anybody help me regarding it?