design of bandstop filter

thanks
iam designing bandstop filter using gic topology where it must stop frequency at 1khz and using 2opamp.
opamp must have open loop gain >70db which iam not getting please help..............
High performance turnable notch filter
You can probably do this using an Antoniou GIC.
Just making a series RLC network to ground.
The inductor is simulated by 2 operational amplifiers (GIC).

Dear manjulasd
Hi
I think your problem is why the open loop gain should be more than 70 dB . right ? if yes , i should say , if open loop gain be as high as possible it will be better . because approximations will be nearby than actual .
Best Wishes
Goldsmith