Hi Expert,
My customer is using INA181-Q1 in their OBC product. And met some issues, need your support on that.
Below are the circuit of INA181-Q1 in the simulation tools, the waveform also attached as below. I(R7) is the current waveform of shunt resistor, V(n032) is the output pin of INA181-Q1, V(n033) is the waveform on C20, V(n034) is the waveform on R11. You can find the output is distorted compare to the input waveform.
The frequency of I(R7) is about 300KHZ which is close to the bandwidth of INA181A1-Q1. I am not sure if it is related to the bandwidth. So may you kindly check the reason of distortion and give some suggestions to avoid the distortion?
Thanks!
Ethan Wen