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Britt,
Thank you for helping fix this issue. However, what I am observing now with the circuit is strange - the output is as expected for sometime (about 250ms) and then dies. Also, the voltage at the output of the DC blocking capacitors (i.e. the inputs to the INA193) start at 0 and continuously grow negatively. I am not sure why either of these is happening. Any ideas?
You can observe this behavior by running the transient analysis, and looking at VF4, VF5, and VF1.
Is it possibly something to do with the shunt conductance that we have set? Although I did change the value from 1p to 100p and it didn't affect the behavior.
Thanks,
Sira