Hi Experts:
I found an issue of OPA2348 in customer's system , see the schematic attached . The input from CON1 is the signal generator,
The gain is 1000V/V, we input the 2mV and 66HZ sine waveform ,the output signal is only 1V , which is not correct.
I also check the bandwidth gain and think it should be OK for the 66HZ input, and i also do the simulation in the TINA, It also OK .
So could you please tell what's wrong with it , is it the Vos issue ?
If some parameter of the OPA2348 can't support this case, is there any device you recommend?