INA186-Q1: What is the max frequency AC current INA186A1-Q1 can test?

Hi Leo,

The INA186 can detect 20kHz current since is within the bandwidth range of the device.

Best,
Mallika Senthil

Hi Leo,

Leo Ma said:

I see some design guidance point that the bandwidth should be 3~5 times of the signal frequency. 

This is referencing the Nyquist frequency theorem: "a signal must be sampled at least twice as fast as its highest frequency component." This ensures that an analog signal can be digitized without aliasing error. 

You can detect 20kHz because its within range and half of the bandwidth, but 5kHz AC current will be a problem because of high aliasing error.

Best,
Mallika Senthil

Thanks!