I modified the LT6230 schematic in the LTspice tool, after that this circuit cannot work well.
My modifications are below:
1)change the two power supply +/-5V to 3V;
2)set the offset of the sine signal to 1.5V;
Note: V(n002) is the output of the OP, the another one is the sine signal.
would you please give me some hints? Thanks in advance.